This is great! I am in the used market at the moment. But, I am not looking for one specific make and model of car. I am trying to spend 4k or less and I have some parameters like mileage, must have a clean title, etc. So, the search experience is a bit too rigid -- most places where I can select one, I'd like to select many. But the results display is way, way better than anything I have used.

Lastly, I feel like a lot of cars (at least in the price range I'm looking) are sold on craigslist, which isn't used as a source here, for good reason I'm sure.