I enjoy driving my Scion xA a lot, and I do drive a lot, which is why I bought it. I have had maintenance issues with the car, having to replace the whole air conditioning unit (warranty), brake problems (corrected by dealer), and a worn out serpentine belt already (changed ourselves), all with less than 45,000 miles. I have noticed some shift troubles with the car, most noticibly when it is cold of course, but at other times as well, revving the engine to over 4,000 rpm's in 3rd. Other then that (lol) I love it!
The size of the car and gas mileage of course! I can park her anywhere with ease.
A little more room in the back floorboard for those over 5 feet would be great and maybe better front seats? More adjustable choices would be great!