I traded my '10 Aveo5 for an '08 Corolla S yesterday. I got an offer that was very difficult to refuse. The Corolla had 58k miles and my Aveo had 51k miles. The Aveo + $3300 and I was on my way with car that will suit my needs better than the Aveo.
What I liked about the Aveo:
Cheap new car
Decent leg room for the size of the car
Great rear visability
Good dependability (for the price)
What I didn't like about the Aveo:
Lack of torque below 2200RPM
Fuel economy low for the size of the car
The clock blocking the defroster from deicing the center of the windshield
Handling
Onstar
Weird proprietary stuff making mods more difficult (clutch safety switch, tpms, starting circuit....)
Overall, I think the Aveo gets an undeserved bad rap. In 51k miles I replaced a wheel bearing, an AC condensor, and had the battery randomly die over the weekend once; a jump start and I was back in business. The battery dieing was a bit concerning but it happened @ 8300 miles and there hasn't been any indication of a problem since. Other than those 3 things, just oil changes every 7500 miles and a couple sets of tires.
I'll be listing my accessories soon... fog lights, double din dash kit, factory service manual, trailer hitch, and deposit box