Had my Cobalt for a few months now, and I'm really happy with it. My last car was a Honda, and I've noticed that the Cobalt just feels more solid -- right down to the "thunk" the doors make when they close. I've crossed 32mpg on the highway, and the car rides like a much bigger vehicle. Can't beat this car at the price. I think Chevy came up with a winner this time.
Solid feel, even ride, peppy for a 4cyl. Good on gas and inexpensive to buy.
More trim styles, and I'd like to see the base stereo system do mp3.