My sister had this car since 2006, I got it from her over the summer. So in all honesty a lot of its problems could be due to the fact that she doesn't know anything about taking care of a car. But since I've had it, it has been nothing but trouble.
To its credit it has been really good on gas. I've pulled 28 to 29mpg out of it in the city and about 36 on the interstate. The seats are comfy front and back. The acceleration is okay for what it is, as are the brakes and handling.
However, it has left us stranded when the timing chain exploded. Parts are hard to find for it when you take it to a GM dealership, especially a small one that doesn't carry little cars. If yours isn't under warranty and you can't find a timing belt for it, it is the same thing as a Pontiac G3, or a Daewoo (it's actually just a Daewoo with Chevy badges).
I'd recommend it as a commuter car, but not for road trips, and for the love of god keep it maintained.