Well, I spent the $20 for the Black Box kit...damn stuff looks like black tar when it comes out the bottle. I did all the 3 steps, and I have to say, most of the scratches and swirls were greatly reduced, and the wax job does make the paint blacker and glossier than other waxes. I think I'll stick with it.
I then bought some Nu Finish Scratch Doctor (based on a consumer report #1 rated)...that stuff got even more of the scratches out. There are still some slight swirls and scratches, but I'd say only about 10-20% of what was there before.