I have been using FMJ for about a year now. I have applied it to my 06 black Miata, my 05 charcoal Tundra and a silver 05 Highlander. All vehicles looked great when done. But if you think about it, what car wouldn't after washing, machine polishing and sealing? I have bragged about Menzerna numerous times. However, from what I read here Zaino and Werkstatt sound awesome as well. I did notice a big difference on my Mazda when I included the finishing touch glazing step. Much smoother and slicker than without. Just before I found this website I bought over a hundered dollars of Menzerna refill products because it was the best I found thus far. I tried their high gloss acrylic shield and HATED it. It clouded and streaked so badly that I had to strip and start over again. This really bummed me out because I like the idea of using a detail spray but definately not this one. Interestingly, FMJ water beading was GONE in about 3 weeks. This makes me seriously question its durability. For those of you who think Blackfire is any better forget it. It dusts quite a bit and it not nearly as easy coming off as FMJ. Blackfire is the personal line of Proper Auto Care in Fl. It's kind of a Menzerna wannabe. I Really like the look of FMJ and it's incredibly easy to use. But as others have pointed out and I totally agree, its durability leaves much to be desired.
Patrick