This is a good app and Auto Trader has always been my go-to source for buying or selling my cars.
The only thing they need to consider is adding something like Cargurus has that tells you whether a car is priced above, at or below market value.
The app itself is functional and useful. Maybe a little too focused on creating a new search than looking up saved ones, but once you know how to access your saved searches and vehicles, its quite useful.
TheKurtster about Autotrader – Shop All the Cars, v2.7.3