I just did my neighbor's (an '04) with LC cutting pad, DACP, and PC up to speed 6. Like Scottwax said, the paint did seem soft. Light scratches came out quicker than I expected. Followed up with SFP, and it looked good. I did notice it has a lot of orange peel, and the fit/finish of body panels leaves A LOT to be desired. But I've noticed this on a few late model GM's (not starting a flame war, just posting my observations). Also, on the Saturn, I noticed the spoiler's paint is not nearly as glossy as the rest of the car, and it's a stock spoiler. Must be a different blending of paint. But the body panels flexing like they do is pretty cool. Freaked me out the first time....
Dave