I have never been disapointed by ANY Meguires product. I have said for years that if they made televisions I would buy one. I even sold agaisnt them and personally never even tried if there was Meguires in the shop, it was no hope.
Try the color sanding paper, it is twice the cost of 3M but MANY more times as good. The "Power compound" I think it is called is the best I have ever used, a table spoon will do a panel, it is really good stuff.