IIRC, this is a component of Mcguiar's 3 step "system," right? (Cleaner, polish, liquid wax)
If so, I've used it, and like most all of their products, it's "nod bad" - my own gripe with this stuff is not the polish, but the wax - yuck. I prefered the #26 paste from there catalog, and that pales by comparison to some others (read Blitz, from personal experience).