I did a little deep-diving trying to imitate a consumer, and I'm not a fan. The homepage seemed very simple for the scenarios I tested, but once you get inside it is a lot of work for the consumer. You need to recognize tabs for images and the details you visit KBB for. It is easy to lose sight of these tabs with the advertisements and submit a lead focus. To get a value on my trade I lost count of the number of clicks I took to get there. Actually, I never got there - I got frustrated....and I like to think I know what I'm doing.
This is not a consumer friendly site.