T estimonials are powerful marketing tools. They add credibility and boost your persuasiveness. They help sell your products and services—but only if they’re not overly sugary.
This article discusses:
4 elements of powerful testimonials
Examples
Two templates
How to ask for a testimonial
Where to display testimonials on your website
Testimonials are a powerful selling tool
As legendary copywriter David Ogilvy wrote:
You should always include testimonials in your copy. The reader finds it easier to believe the endorsement of a fellow consumer than the puffery of an anonymous copywriter.
Ogilvy wrote those words in his book Confessions of an Advertising Man, originally published in 1963.
Yet, over 5 decades later, testimonials are still one of the most underused sales tactics online.
That’s because most testimonials are overly sugary so they’re ineffective.
Plus, testimonials are often hidden away on a website; they’re not placed where they matter most and where web visitors will see them.
This article provides a mini-course on using testimonials to add credibility and boost your persuasiveness so you can sell more.
What makes testimonials ineffective?
I’m sure you’ve read ineffective testimonials like this:
- Johnny is a wonderful teacher.
- I’ve learned so much from Jennifer!
- Joanne’s workshop was amazing.
These testimonials are far too sugary to be believable. They don’t help to sell because they don’t give readers a specific reason why a service or product was so good.
Powerful testimonial are more like miniature stories, sharing the experience of a service or product and giving reasons why other should consider buying, too.
4 requirements of good testimonials
A testimonial is a statement from a customer explaining how much they enjoyed a product or service.
To make a testimonial effective, pay attention to these 4 elements:
- Specificity: The testimonial gives a specific reason why a service or product was good. This specificity boosts credibility, and it makes the testimonial feel more authentic—readers know the writer of the testimonial actually experienced a good service.
- Authenticity: The testimonial doesn’t feel hyped up. It uses natural language to describe what was good about a service.
- Explanation of a benefit: A good testimonial demonstrates what impact a product or service had on the client; it shows how their lives have improved. This is what makes others interested in buying, too.
- Objection busting (optional): Objections stop people from buying and a good testimonial can help take away objections so people feel more eager to buy.
A good testimonial explains how specifically a product or service improved someone’s life. It does so in an authentic way.
Shall I show you how?
Examples of powerful testimonials
Here’s an example of how Blazen Web Marketing transformed a business:
Their work on our website and Internet marketing has made a significant different to our business. We’ve seen a 425% increase in quote requests from the website which has been pretty remarkable – but I’d always like to see more!
Why does this testimonial work?
- It demonstrates a key benefit—getting more quote requests from a website is a benefit many website owners are interested in.
- It is specific—the testimonial mentions a 425% increase in quote requests.
- It feels authentic—the testimonial writer even admits they’d like to do even better.
The following example is a testimonial for Case Study Buddy :
Writing case studies was a daunting task for us. We didn’t know where to begin or what questions to ask, and clients never seemed to follow through when we asked.
Case Study Buddy did everything – with almost no time or effort for me! The best part was that I could completely trust their team to represent our company professionally with our clients.
Why does this testimonial work?
- It demonstrates a key benefit—the testimonial shows the transformation from a daunting task to something that required almost no time or effort; most business owners would love it if they can hire a company who just gets on with a task.
- It is specific—the testimonial mentions specific reasons why writing case studies was a daunting task: they didn’t know what questions to ask and clients never seemed to follow through.
- It feels authentic—the writing feels real; there are no hypey words.
The following example is a testimonial for sales email experts Salesfolk :
As a sales gamification company, we were skeptical to work with a consultant to optimize our sales emails, but Salesfolk was highly recommended by many other Y-Combinator startups we knew. Salesfolk helped us run a ~6 week email campaign that brought us more leads than we had ever seen for a single effort.
Why does this testimonial work?
- It demonstrates a key benefit and takes away an objection—many other companies may feel skeptical about hiring a consultant for optimizing sales emails, too; but this testimonial demonstrates it’s worth it.
- It is specific—the testimonial mentions who recommended Salesfolk (other Y-Combinator startups) and what Salesfolk did: help run a 6-week email campaign; the result (more leads) could have been more specific by mentioning a percentage increase.
- It feels authentic—the testimonial mentions the skepticism before hiring a consultant.
A good testimonial always feels real and authentic. It gives specific details, and either demonstrates a benefit or takes away an objection.
Two testimonial templates
Below follow two simple templates to help you write a testimonial faster:
- The first template demonstrates how a service (or product) helped improve a life—this is the most common template.
- The second template explains the hesitation to hire someone or buy something, and why that hesitation was misplaced. Click here to jump to this second template >>
Testimonial Template #1: The transformation explained
The reason this testimonial template works so well is that people don’t buy a product. They buy a better life. And this type of testimonial demonstrates how someone’s life was improved.
The template follows a 3-part structure:
- Part 1: Explain what the situation was before a product or service was purchased
- Part 2: Give specific reasons why you liked the product or service
- Part 3: Describe using specific details how your life was improved
Here’s an example—a testimonial for the Enchanting Copywriting course:
I bought this course because I have struggled to make my own website for my solo language coaching business for 8 years. I got stuck on the copy every single time.
I wanted to learn how to persuade potential clients to get in touch with me because selling my service in a foreign language market is extremely difficult. Henneke’s course saved me. I loved the recipes that teach you, step by step, how to organize your sales page and what to say in each section. Each section has an objective. Plus, the example layouts for different kinds of businesses were invaluable.
I sailed through the course in about 10 days because it’s sectioned into digestible modules that kept me curious to learn more. My copywriting skills have improved drastically and I’ve taken up a new interest in the world of copywriting. Thank you, Henneke!
~ Alanna Beach, online language coach
You can see the 3-part structure in action:
- The testimonial first describes the situation before the course: Alanna was struggling to write copy for her website. Note the specific details that make the testimonial feel more real: She wanted to write copy for a solo language coaching business (that’s specific) and she’s been stuck for 8 years—numbers are always specific, and they boost credibility; if you can include a number in your writing, do so.
- The second part of the testimonial describes specifically why Alanna liked the course: The recipes that teach, step by step, how to organize your sales page and what to say in each section. Plus, the example layouts for different kinds of businesses.
- The last part describes the situation after the course is completed: Alanna’s copywriting skills have improved and she’s taken up a new interest in copywriting. This part could have been more specific, for instance by mentioning that she finally got her website live and what the reaction has been (it’s great!).
Below follows another example using the same testimonial template. This testimonial is for the Enchanting Blog Writing course:
I’ve done a couple of writing courses in the past and I have loads of ideas. But I get overwhelmed and I’m not good at structuring my writing. So I still felt stuck.
After reading Henneke’s blog for a few months, I purchased the Enchanting Blog Writing course because I like the way her blog posts read and because I hoped the course would give me some direction and motivation to sort out my blog.
Henneke’s teaching is simple, yet detailed, and I love the huge number of examples in this course. I had not realized how powerful examples are. The examples help teach what Henneke calls X-ray reading so I can now see how others write their blog posts, and I’m starting to create my own blogging voice.
Many courses promise to give step-by-step guidance but still leave you wondering what to do next. Henneke’s course is different.
At the end of the course, I knew what to do. I’ve just created my first post of over 3,000 words, and it didn’t feel like a daunting task. I know what to write in the opening. I know what to write in the closing paragraph, and I know what to put in the sections in between.
Thank you, Henneke. I’m super-grateful for this course.
~ Dylan Ball, Vocal Coach
The 3-part structure is a little expanded in this version:
- The testimonial first describes the situation before the course: Dylan had done a couple of writing courses in the past but still felt overwhelmed and stuck. He specifically mentions that he wasn’t good at structuring his writing
- The next part is extra: Dylan describes why he purchased the course, how he’d followed my blog for a few months, liked my blog posts and hoped that my course would give him direction and motivation to sort out his blog.
- The next part of the testimonial describes specifically why Dylan liked the course: The teaching is simple, yet detailed. Plus the huge number of examples.
- The last part describes the situation after the course is completed: Dylan is starting to find his voice and he has just created his first post of 3,000 words.
Have you noticed how real these testimonials feel?
They’re like miniature stories that give an impression of someone’s transformation—from being stuck to writing with ease.
If you need to write a testimonial, you can do the same. Describe the situation before you purchased, explain your experience of a service, and then share what the result has been.
No need to be overly positive. Share specific details. And keep it real.
Testimonial Template #2: The objection busted
This second template explains a hesitation to buy or to hire someone, and why this hesitation was misplaced.
This template works well as a selling tool because if you’ve hesitated to buy, there’ll be others who hesitated for the same reason. By showing why you went ahead and why you’re glad you did, you help take away that same objection with others.
The template works as follows:
- Part 1: Explain why you hesitated to purchase
- Part 2: Describe why you decided to go ahead anyway (as you can see in the second example below, this part is optional)
- Part 3: Provide details of your experience with the product or service
- Part 4: Show how your life was improved
Here’s an example—a testimonial for the Enchanting Copywriting course:
I was unsure if the Enchanting Copywriting course would apply to my small e-commerce store; I thought it might be more suitable for higher-priced offerings like an e-course or coaching sessions. I also own both of Henneke’s copywriting books and was afraid there would be some overlap.
But my product descriptions were sprawling all over the place and I needed a better understanding of the structure of persuasive sales copy, so I took the leap and I’m glad I did.
Henneke doesn’t only teach you how to write a sales page, you learn so much more. For example, the psychology behind why your customer buys your product and methods of how to guide them if they’re hesitating.
This course is incredibly well structured and to the point. Henneke teaches complicated concepts in a simple way and helps you sail through the course pain-free. The watch-listen-write “triple punch” format of the Enchanting Copywriting course doesn’t only work for different learning styles but together they’re a powerful means to make you actually learn. I could feel my brain growing while doing the activities. I would gladly buy this course again just for the teaching style alone. I’ve taken many online courses but I don’t think I’ve ever learned so much in an online course as in this one.
Many of the techniques I’ve learned I now use in other writing as well, like my blog articles and in my emails. My writing is much clearer and I have a system to follow so my sales copy is more concise and straightforward.
~ Susanna Tham
You can see the 4-part structure in action:
- Susanna first describes two reasons why she hesitated to purchase the course: (1) she wasn’t sure whether it was applicable to her situation (this is a common objection!) and (2) she worried that there’d be too much overlap with my books (another common objection for courses!).
- The second part of the testimonial describes why she purchased anyway: Her product descriptions were sprawling all over, so she needed to take the leap.
- The third part describes why she was happy taking the leap—she liked the structure and the watch-listen-write format of the course.
- The last part describes how her life had improved: Her writing is now clearer and more concise; she even uses the techniques in different types of writing like blog pots and emails.
You can see the same structure in action in this testimonial for the same copywriting course:
I’ve bought so many digital courses and had to practice sheer discipline to finish them, and even so I end up dropping the ball and the course lands in an unknown digital drawer.
This course is different.
Henneke has broken down the teaching in a logical way to help you stay on track. After each module, I am wondering what she’ll be tackling in the next and want to step on the gas pedal!
This course teaches you much more than writing persuasive sales pages. Right from module one I started to incorporate Henneke’s teachings into everything I wrote. Without much effort my communication (so not only what I wrote, but also how I brought ideas forward) became clearer, more to the point and hence a lot more effective.
Even if you do not write a page but you outsource it, this course will give you everything you need to write a draft, brief the copywriter and assess the work.
~ Claudia Schalkx
How this testimonial works:
- Claudia first describes her hesitation with digital courses—she struggles to finish them (that’s another common objection to buying courses).
- Next, Claudia skips why she decided to purchase this course; she jumps into describing why this course is different: The teaching is logical and helped her stay on track. She finds herself eager to find out what the next module teaches.
- The last part describes how her life has improved: Without much effort, her writing is clearer, more to the point, and hence more effective.
A good testimonial is like a miniature story, describing how one person’s life improved after taken a course, hiring a coach or consultant, taking part in a workshop, etc.
Others who can recognize themselves in these stories. They may be hesitating to purchase for the same reasons. Or they find themselves in the same situation—such as feeling stuck writing—and dream of a similar transformation taking place—such as making their writing clearer and the process of writing easier.
But if you’re a service provider, course seller, consultant, or coach, how do you get such powerful testimonials?
How to ask for a testimonial
If you simply ask clients for a testimonial, it’s unlikely the testimonial will be as effective as the examples discussed in this article.
To get a powerful testimonial, ask your client for input and write the testimonial yourself. To get the right input, ask your client:
- What was their situation was before they hired you or purchased from you?
- Optional: Did they hesitate to purchase from you? If so why?
- What was their experience with your product or service? What did they appreciate most?
- What difference has your product or service made to their lives?
Below follows an example of a testimonial request for my blog writing course. In this case, someone had already mentioned they’d be happy to write a testimonial:
Are you still happy to help with a testimonial for the course?
If you like, please answer the questions below, and I’ll compose the testimonial based on your answers. Of course, I’ll send it to you for approval:
- Why did you purchase the course? What did you hope to learn?
- Did you hesitate to buy the course? If so, why? If not, what gave you the confidence to buy?
- How did the course meet or exceed your expectations? Were there any surprises?
- Which modules or writing techniques were most useful to you?
- What difference has the course made to your writing skills? Have you already noticed any impact?
Of course, no hurry. But it’d be lovely to get my first review from you 🙂
Cheers,
Henneke
As you can see, question #1 relates to the before-situation. I asked question #2 because it gave me the option to write a testimonial based on the objection-busting template (template #2 above). Question #3 and #4 are about the experience of the course. By asking two questions about the experience, I increase the chance of getting some specific input. And the last question is to get an idea of what the post-course experience is like.
You may find that a client gives brief answers without any specifics. If that happens, go back and ask them whether they can explain what exactly they meant or whether they can give an example of how exactly their writing skills improved.
I adapt the email to request a testimonial almost every time. If I have a specific reason to ask a review, then I’ll mention that in the email. For instance: I’d love to get a review from you because you work in the charity sector, and I don’t have a review from this sector yet.
And if I know that someone hesitated for a specific reason, I’ll mention that in the email, too. For instance: I remember you were hesitant to buy the course because you thought the price was high. I’d love to hear what your experience has been.
Lastly, if it feels too awkward to ask for a testimonial, I may simply phrase the email (with similar questions) as a request for feedback.
How to write up a testimonial on behalf of a client:
- Put their answers in a logical order (following the templates mentioned above)
- Use the words of the client as much as possible
- Cut any excessive wordiness but don’t edit too ruthlessly—make the testimonial feel natural
- If the wording sounds over-the-top positive, tone it a little down—but try to keep the enthusiastic tone
Of course, when you’ve written the testimonial, be sure to check your client is happy with how it turned out before publishing it.
To get good testimonials, make it easy for your client. And do most of the work yourself.
Where to display testimonials on your website
Too many websites hide their testimonials on a dedicated page that rarely gets visited.
But testimonials have more power, if you use them as proof that your product or service is good. Use them as a selling tool wherever you sell your products or services:
- On your home page
- On your about page
- On your service and product pages
- In sales emails and quotations
- On LinkedIn
Testimonials have most power if they confirm what’s written in your copy.
For instance, on the sales page for the Write It, Don’t Fight It course, I explain that the course teaches the principles of joyful productivity so you can crush writer’s block, and I follow it with a testimonial of David Holmzer confirming this point.
David explains how he’s struggled for decades with writing but since taking the course, he feels finally excited to write:
And later on on the same sales page, the text mentions how the course helps you to hit your writing goals even if you’re busy, and a testimonial from Deborah Reidy follows to confirm this point.
Deborah explains how the course helped her boost productivity by 300%:
Testimonials look more persuasive if you add a picture of the person who’s given the testimonial. I often download a photo from a social media profile but always ask permission whether it’s okay to do that.
The more work you put into getting the right testimonials, the harder the testimonials will work for you and the more you will sell.
Don’t be afraid to ask
Asking for testimonials seems hard.
I’ve been there, too. Why bother a client with such a request?
But I was wrong.
Most clients are delighted to help you with a testimonial.
So, next time you finish a project, ask your client whether they’re happy with your services and whether they’d recommend you to other people.
Do they say “yes?”
Ka-ching! This is your opportunity to get a persuasive testimonial. And win more clients.
Recommended reading on writing persuasive copy:
How to teach yourself copywriting (on a shoestring budget)
How to write your success story
How to craft a tagline for your business
Sayantani says
How do you add authority/trust to your product landing page without testimonials, especially when you are launching your first product? As a first product, the buyer will also be a first. What do you do in such a scenario to be persuasive?
Henneke says
It depends on the product. For software, companies often use beta testers. You can also try to get endorsements from people your audience respects (it may require sending out free products). Using video, high-quality photos, detailed product descriptions, any test results, and a clear and easy return process can help, too. You can build trust in many different ways.
Pooja says
Hi Henneke,
I have been asked to write a testimonial for myself as a freelance technical interviewer for the consultancy that I am freelancing for. Can you please help me with this ?
Henneke says
Why not ask the consultancy what the aim of the testimonial is and what they’d like you to mention?
Leonardo says
This is the best article I have read about how to structure a testimonial. With your examples, I got so inspired to write and publish the story of my business. Also, the way you explain things is very easy to be understood. 3 acts! Let’s do this! Thank you for such a great article. Have a great week!
Henneke says
Thank you, Leonardo. I’m glad you found it useful. Happy writing!
Rahul Yadav says
Thanks, you gave me a great idea for my testimonials ?
Henneke says
Great!
Therese says
Great tips. I recently requested a testimonial and was asked to write it myself and they would sign off on it. As uncomfortable as that is for me (I feel like I’m tooting my own horn or putting words in my client’s mouth (I *am* kind of doing that!)), this article will help me to get it done with finesse!
Henneke says
Good luck with writing your testimonial! If you get stuck, you can always ask your client a few questions in a phone call, so you can write it in their words.
Hugh Barnsley says
Thank you for your testimonial guidance. Reminding me of he importance, efficiency, and effectiveness of testimonials has reminded and inspired me to focus on securing such for my services.
Henneke says
Great! Good testimonials can make a big difference in sales.
William says
Getting a good review is itself an art. Probably, many of the company lacks that. Many of the shoddy company write their own testimonial which is clearly visible from the testimonial itself.
Henneke says
Yes, writing your own testimonials is not really ethical and as you say, it almost always shows. A bad idea!
Teri says
Dear Henneke, you played a big role in improving my writing style. I am starting to get it and keep improving. Thank you for writing such good articles and demonstrating them with real examples. I find them very helpful.
Henneke says
What a lovely comment. Thank you, Teri!
Katharine says
Henneke, people write me lovely compliments a lot. When I ask them if I can use their words as testimonials, how do I go about it? Should I ask them to rewrite it just for me, asking the questions you’ve mentioned above? Or should I simply take what they’ve said from the heart? And if I rewrite it, should I okay it with them before I publish it? Thanks! 🙂
Henneke says
Yes, when they send you a lovely compliment, ask them whether they’re happy to write a testimonial for your site, and suggest that they include perhaps more details of what the experience with you was like and what impact it has had on their website or on what else you’ve done for them. (Check out potential questions here: http://www.copyblogger.com/testimonials-part-2/ You don’t have to ask them all, and you probably want to re-phrase them to suit your situation).
You can see the testimonial as an expansion of the original compliment – you can still include those words that they’ve said from the heart.
If you edit a testimonial (other than correcting a typo), then I would always okay it with them before publishing it.
Mark Crosling says
Good actionable advice in your article Henneke. I agree that it’s a most underused piece of sales content, but difficult to ask for. I see a number of sites relying on logo’s for the companies they’ve done work for.
As a side note, just love your Ka-ching! (a well placed exclamation mark btw). I use the term but I’ve never seen it written before. I have a friend in KL that has a water dispenser machine and I call it her ka-ching machine – it chews up coins and drips out water.
Enjoy the week
Mark
Henneke says
The logos can be a good alternative. You can even put that in a contract, so the client agrees upfront that you can use their name and logo on your site.
I don’t even know where I read Ka-ching first. I wonder whether it originates from comic books?
barry says
Hi,
The testimonial for Valuable Content makes me want to hire them. It’s great. I now know what to say when asked. Those six questions are also a great way to get to know your audience better. Thanks as always.
I read all your posts but sometimes my comments don’t make it through.
Henneke says
I know Sonja and Sharon, and they’re a great team!
Do you mean your comments get stuck in the moderation queue? (I’d like to know if that’s the case) Or do you mean that you don’t always have time to comment? (Don’t worry about that. I’m grateful when you do make the time to stop by!)
Cathy Goodwin says
Love the way you introduced this topic…the #1 most neglected piece of copy! And you are right. I’ve started creating guidelines for my clients to ask *their* clients for testimonials. I edit testimonials when I write copy for websites and sales letters, but you need to start with something more than, “He is such a nice guy” or “The course was interesting.”
I’ve found that some people are reluctant to offer testimonials, even when they acknowledge they’ve gained a benefit. I attribute that to feeling insecure: they had to acknowledge they sought help for something they felt they should be able to do.
Henneke says
Yes, so true. Editing a poorly written testimonial is so frustrating. If there’s no specific information, it’s impossible to turn it into a persuasive testimonial.
It’s a real pity when people are reluctant to give testimonials. We can make it as easy as possible for them by doing a short interview and writing the notes, but we can force people to provide a testimonial.
Saleem Rana says
Thank you! I’ve used testimonials with success, but I can see now how I can improve them even more.
Henneke says
Great! I’m glad you’re already on the right track, Saleem.
Singaravelu A.P says
Yes, Henneke !
My testimonial to you is you are gifted with word power and sketch power 🙂
I mean the drawings.
Thank you for yet another super article for us to practice in our tasks.
Henneke says
Thank you for your testimonial! 🙂
Kathy says
This is really helpful. I’ve had people offer to write testimonials and when they asked for guidance I had no idea what to say. I’ve taken notes…I have a testimonials I want to write. ?
Henneke says
Let me guess …. is it for a blogging course? 😉
Wayne Lamarre says
Hi Henneke, great point about not hiding testimonials on a low traffic page. I’ve just baked in asking for testimonials in my off-boarding process and am having my clients do the same.
Another great post.
Thanks,
Wayne
Henneke says
Great to hear you’re asking for testimonials as standard!
Thank you for stopping by, Wayne. I appreciate it.
V.Lewis, Writer says
Henneke,
You’re right! Starting out, we need and greatly value those testimonials but I sometimes feel awkward asking. Your post gave tips on how to ask and what to include in an effective testimonial. And it goes both ways: now I know how to give an effective testimonial for coaches or freelancers I hire.
Thank you!
Vanessa
Henneke says
Yes, so true – it works both ways. Write good testimonials for people you hire, and ask the right questions to get good testimonials for your own work.
Thank you for stopping by, Vanessa!
Oliver Warnes says
Thanks for this article,
I always think it’s a good idea to try and get your customer to answer common sales objections with their testimonials. You have to be very specific with your testimonial questions but, it makes the responses that much more useful.
I agree with Andrew M. Warner, using pics and video is even more powerful.
Thanks
– Oliver
Henneke says
I agree that video testimonials can be a great addition to written testimonials.
A lot of suggestions in this article are applicable to persuasive video testimonials, too. But I’m not a video expert, so prefer to write about written testimonials. 🙂
Thank you for stopping by and adding your thoughts, Oliver. I appreciate it.
Alfred says
Yes, that’s fine Henneke, but it’s the customers that must write the testimonials, not us.
Henneke says
You can help clients write the testimonial. Send them a list of questions (or interview them over the phone). Then use their answers to write the testimonial in their words. Get their approval for the testimonial before publishing it.
Here’s a useful list of example questions: http://www.copyblogger.com/testimonials-part-2/
This is a little more work for you, but the testimonial will be more persuasive – especially if your client isn’t a confident writer or doesn’t understand what makes a testimonial compelling. When you simply ask for a testimonial, most clients will provide a sugary testimonial that’s less effective.
Irina Bengtson says
“When you simply ask for a testimonial, most clients will provide a sugary testimonial that’s less effective.”
Yes, that’s exactly what I got, ones asked some clients for their testimonials.
And yes, most of the them didn’t know how to write them. And I didn’t’ really know how to help them. Until now.
Thanks a lot, Henneke. Both for the article and the useful link here.
Henneke says
Great! I’m glad you found this useful, Irina. Asking specific questions or giving people detailed guidance on how to write a testimonial can make a huge difference. The testimonials become like mini-case studies. Far more persuasive than those sugary testimonials 🙂
Andrew M. Warner says
Superb stuff here Henneke,
You’re absolutely right about testimonials. They’re much more powerful when they share something specific. There are times when the generic ones work too, but you would want each testimonial to be super specific if you charge a high price for a product or service.
What’s your position on using pictures and their full name? Or even video testimonials?
I think those would help convert a lot more people and get more clients.
Great stuff here as usual.
– Andrew
Henneke says
Generic testimonials can work – especially when they’re from well-known people. They’re like endorsements. They have a similar effect as displaying logos of well-known companies that have hired you.
And yes, a full name plus photos are useful. Also, include their role and company name. These are also specifics that can boost your credibility.
There’s no doubt many people love video testimonials. They certainly feel authentic.