Have owned car for a week. Researched and test drove five different makes and models before narrowing choice to a Camry. Very pleased with car overall. Saved myself just slightly over $1000 dollars for driving to Ames as opposed to the Des Moines dealer. No buyers remorse here! Actual fuel economy too soon to say since I have driven about 200 miles thus far.
The xm radio (temporary). I enjoy Listening to the comedy stations during rush hour traffic. Comfortable seats, quiet ride, and cools/heats quickly.
Currently I cannot think of anything to improve upon but, I knew what I wanted and got just that!