Has been extremely reliable for us, only leaving me stuck somewhere the one time the battery died.
The interior is small, but that's what you expect when you get a compact car like this. The wagon is nice because you can actually carry large objects/furniture in the car if you fold the back seat down.
The transmission is incredibly smooth, which is very refreshing for an automatic 4 cylinder. All of the other 4 cylinder cars we looked at felt like the engine would explode before the transmission shifted into the next gear.
I actually really enjoy that the car has plastic side panels. Someone ran into our bumper in a parking lot - scratched up the paint and broke the brake light. The body shop estimated $800 to fix (with ridiculous amounts of paint and clear-coat). We just took the money and ran, because we don't need to worry about rust. I replaced the rear light for $90.
Another thing to expect with the small car, the road noise is quite loud. I don't know if I'm just getting old, but the road noise seems to be getting louder as the miles get higher...?
Gets great gas mileage - We get around 28mpg city and have gotten 36mpg on the highway. Although the mileage is getting a little lower as the car's miles go up.
I do most of the maintenance on this car, and enjoy that Saturn seemed to design the car to allow home mechanics to work on it. For example - the transmission fluid is drained by removing one drain plug (bolt) and the filter is a screw off like an oil filter. On our truck, changing the transmission fluid/filter is a tricky and messy enough job I just took it to the shop.
After the car started running rough around 100,000 miles, I researched the issue on the Internet a little and found that replacement of the Engine Coolant Temperature Sensor is a common issue. After replacing it, the car runs very smoothly again.