Originally Posted By: grampi
I used the M205 on black, which anyone whose detailed any vehicles before knows black is the worst color for showing imperfections on the finish. Mine came out absolutely perfect...and I mean perfect...there's not one bit of hazing or micro scratches left on the finish at all...it looks like glass...I don't know how you get any better of a finish than that...
Like it said, this will vary by situation.
On soft paints, M205 does not always finish out well -- it sometimes leaves a very faint haze.
Furthermore, I've seen situations where M205 will produce a great finish, but after stripping the oils, you will see faint micro marring.
Overall, M205 is a fantastic product with a lot of uses (I've even used it as a compound with MF discs using the new Kevin Brown Method), but for the pro-sumer or enthusiast, it should not be the only finishing polish on your shelf.