I had a Porter Cable 7424 for a year, and found it quite useful, but it took a long time doing any "heavy" work on Audi/VW paint. I sold it on to a friend of mine, and got a rotary, the Milwaukee AP12QE. Simply AWESOME machine.
Easy to use, nice and light and great results in a lot less time. I read up on how to use a rotary, tested and got the hang of it on my old VW daily driver, and now very happy with it.

Can't recommend it highly enough, decided against the G220 as it has a high breakdown rate. I also have a friend who has one of the updated ones, its just popped a screw out after doing 1 panel.
