PDF Pals is a product that lets you chat with your PDFs. It uses plain, pain language, use cases and 'show not tell' to relay what it is, and who it's for.

I was really impressed by the three different use cases on the page. People often wonder how to showcase their product working for different buyers - this is how.

My suggestion is to support these elements with relevant testimonials from customers that have that use case, to increase desire and credibility.