I’ve used it. As a last-step sealant (read: something that’s main purpose is to protect the paint), it gets an B+.
It’s easy to apply but not the most durable sealant I have used. It’s also really expensive. It certainly looks good as far as sealants go.
As a system, eh. They have this polish now. Eh. I don’t know how somebody is to take out moderate swirls with one polish. The clay they sell is the same as any other yellow detailing clay. If it’s cheaper somewhere else, buy that.
One really weird thing that I really can’t understand is this “layering” crap that Zaino users and now 90% of Autopia prescribe to. When I need to apply another layer of wax, my car usually needs more than just a new layer, and most likely a mild cleaner. Do Zaino people really just keep applying new layers frequently? Then how do they know it’s durable!?
Those cars look fairly new in the pictures. I don’t know what I’m supposed to be judging from them.
I’ve been using a mixture of one part Klasse All-In-One to 3 parts Klasse SG on my car for two years now. It works. I’ve also applied Z2 over Klasse AIO. It works.