I've owned my Alero GLS since June 05, and have been nothing, but happy with it. I've had it less than a year, and have put over 60,000 miles on it. The only thing I've done to it is regular scheduled maintenance. But have also spent the extra money to put good parts on it. For example: Bosch platinum plugs, and synthetic oil.
Its finally getting to the point where rotors are needing serviced, but its still on the original set, (all 4). I don't see where some owners are having such problems with their cars. You take care of them, they'll take care of you.
I use mine primarily for interstate travel for business and legal matters, and with gasoline prices as they currently are, I love getting 34mpg.
The only thing this car lacks in options as far as I'm concerned, is heated seats and on-star.
I love my Alero, and wish Id have bought one sooner...
I would like to know why I am having so many problems too, because I DO take great care of my car. I get oil changes every 3000 miles/3 months, get the scheduled maintenance every 15,000K. It is just that GM does not know how to make cars. You are lucky compared to most of the Alero owners on this site. Count your blessings and hope you don't have the problems we all have had. I probably could have bought a used Honda for all the money I've sunk into this clunker. Good Luck!