Used it on m'lady's Town Car. As said, it goes on VERY fast and easy, works wonders for trim. Only thing I didn't like about it was the fact that it seems more like you're putting on some kinda form of interior protectant on the EXterior - all thin and greasy-feelin'. That, and you don't get that same slippery feeling that you would after putting on a coat or two of regular wax - it doesn't pass my "slide test" (place the wax bottle on the hood when you're done, let go, and how far it slides determines how good a finish you've got).
I put two coats on a month ago, and it's rained a few times since then. Still appears to bead water well enough, and it holds the shine after a wash, so it ain't all that bad. It just seems way overpriced for what it is, really. Costs almost double what I usually use, just for the benefit of quicker/easier application. I'd probably only recommend it for a quickie refresher/maintenance finish coat over something else a little more durable.