I enjoy my new Cobalt. I've rented several during trips and it's excellent on freeways, tight turning the corners, fits well in tight spots and has lots of power for a compact car. Very stylish - love the round rear lights.
My favorites are the XM radio, stereo sound, and a surprisingly roomy trunk. The dash has easy to read dials and a user-friendly information center.
Need a bit more head room (I'm 5'9"), increase the range of the rear view. If a spoiler is attached like on some of the rental cars I had, it decreases the rear view drastically. Include power side mirrors and more cushion in the seats.