One of the biggest reasons you should use testimonials in your video advertising is the boost in credibility. Your customers are far more likely to believe one of their peers than they are to believe you. ... With a video testimonial, they hear it straight from the mouths of their peers.
Testimonials work because they aren't strong sales pitches, they come across in an unbiased voice and establish trust. You're using real people to show success in your product or service. In the end, you testimonials will be there to convert more prospects into customers as long as you use them correctly.  The target audience for the proposed testimonial video will be - Trade Show attendees, potential customers, prospective investors as well as used for media release and social media broadcasting.