Everything was covered under warranty and on the plus side I get a free car wash every time I come in...
You should be aware that you might have problems with the build quality and you might not. If you have a good dealership(service center), the total package will far outweigh the minor(to me) problems. I fit comfortably in the back seat and I'm six foot, but check it out for yourself.
Some people have no complaints while others have many, but nothing major in the 06's that I know of. The teething period for the 9-3 is over with help from GM, but there are always some problems with an all new model.
I would go with an aero. The V6 makes a big difference over the 4 cylinder, just make sure you test drive both versions and make sure you can live without memory driver's seat, parking assist and rain sensing wipers (you can buy an auto-dimming mirror as an accessory for about $200). The lumbar support in the sport seats fit me perfectly and really make a difference in "urging you on" during my daily commute. And don't forget the aero academy, lots of free goodies and a never ending 2 day smile. It would cost $1350 by itself, but when you factor it in to the price it makes the aero a somewhat smarter choice considering you basically get the afore-mentioned options for close to nothing.
I hope this helps you with your dilemma. If you do your research, look on the saabnet.com forums and take a good long test drive of the base and aero trims you should be able to make an informed decision of what is best for you.