The engine and transmission are very reliable on this car except for the one incident with the timing chain breaking and the 5 year life of the alternators.
I'm guessing the worn cv joints and rear-view mirror problem are common for cars beside this make and model, yet I don't feel the mirror problem should really exist for any car.
One rear door window web shattered summer of 2002. It was really hot out, then it got really cold fast outside and rain started as a sprinkle. I heard from inside my apartment when that happened. The other rear door window web shattered november 2003 the temperature didn't change much or fast 30 in the day down to 22 at night roughly, light snow and another window to replace.
The timing chain breaking was a bad surprise. Out of town on the 4th of July.
As for providing heat into the car in the winter. A good example would be one night I was drive a long distance home cool air is all I could get. I pulled into a small town to rest a bit and instead saw a soda machine and stepped out for maybe a minute to buy a soda. I entered the car to find hot air flowing so easily. I put the car into drive and before I was even back onto the highway cool air again. Cooling system full, thermostat tested good, and the engine itself is hot to the touch like any other car engine after its been running for 20 minutes or so.
The car was repainted before I purchased it under the GM recall of vehicles with bad paint jobs. Whatever the metal was treated with, it doesn't like paint staying on it. If I would have repainted the car every year or 2 it might still look decent. I have a 1977 pontiac now also that has the original paint job still and it looks better.
Sometimes the car runs really rough after starting it and will continue to do so no matter how long it runs unless you turn the car off and restart it. Then it runs great.