I've tried that cleaner kit... didnt like it that much. I did it myself. Took 45 minutes this is what you need:

1 x 1000 grit wet sandpaper
1 x 1500 " "
1 x 2000 " "

multil speed polisher
scratch and swirl remover
dupli-color clear coat spray

less then $15 ( unless you dont have a multi speed polisher )

I have pics so I'll have to look for them and post