Testimonial ads are a format that helps you move people from "I know what you are doing" to "I trust you enough to do business with you".
Video testimonials are even better.
You see the person who has a similar role that you do saying things about the product you are considering.
CircleCI did a solid job here.
And so if you are running remarketing to people who went to pricing but didn't sign up, or signed up to a free trial but haven't converted yet this is a good format candidate.
