1) Just looking at the site, without actually signing up, I can't really figure out what you do. I had to read through the comments here to understand what the service is. 2) I would be willing to pay several hundred to a thousand dollars, depending on what the car is and how difficult it is to sell. 3) Saving time and hassle is the biggest benefit for me. 4) Put more info on the site regarding what the service is, what benefits you provide, without having to sign up.