If you ask a hundred guys, you'll get a hundred answers. Lots of different products and ways to get it done. Personally, I like 3M stuff. It doesn't just cover up the swirls with slime like some of the other leading brands do. I like doing my buffing at night, in my garage, under florescent lights. If you can make it look good there, it should look good anywhere. IMO, This stuff takes years to properly wrap your head around. While learning, You WILL burn though some paint. Take your time and don't use a nice paint job to try and figure it out on.
Happy Buffing.
Mike Barnard