Testimonials are important to showcase in your marketing, but the reality is that nobody wants to watch a boring review video that isn't engaging in the slightest.
So what I've been doing is adding a ton of custom b-roll relating to my clients and my offer and adding music.
And while they haven't gotten a ton of views, I've gotten incredible feedback and it's help me get new clients recently.
Give it a shot and see how it works for you guys.