I really don't like the product. I did buy it (and the price is a rip off) and used it. It went on well and came off easy, but it did not give a good look to me. It left my metallic paint very sterile and boring looking. No depth, I didn't like it. I don't want to use a product that I have to apply 54 coats to get depth from it. Just a bland product, it does not offer the look that a good Carnuba does. And it only lasted about 2 months before it stopped beading (at the time detailing was not on the top of my list or enjoyable things to do like it is now, I wanted something that was realativly maint. free and looked good).
The leather conditioner was no better than a OTC one, tire stuff sucked, and the Z8, if not applied perfect, I got a ton of streaks. The only thing I still have from my Zaino kit that gets any use is the Z7 soap and Z6 on love bugs when I don't want to waste my other QD's. The clay kit I use for wheels, under rockers and bumpers, and my wheel wells after the track to get the rubber out. So the Z7 isn't bad (just too expensive when compared with other things out there that cost a fraction and do the same thing or better) and the Z6 is just another QD that smells like grape.
The religious Zaino fanatics who think it is better than God is just be an annoying interw3bz thing. It makes me laugh more than anything.