Well I dont have any Zaino on my car, it is currently wearing (under proper prep) Prima amigo > Jetseal 109 > my home brewed wax.
Sorry if you got the wrong Idea, the reason I said "lost" to zaino is because it seems many zaino users only use zaino, or rather just use everything zaino makes and only add in non-zaino products when zaino does not make that type of product (example: zaino does not make a degreaser, thus they must use a different brand).
With any brand, it annoys me when people go nuts and just use one brand all the time and not always try new things. The reason it annoys me the most with zaino is because it never seems to happen quite as intensely with other brands as it does with zaino.
When people ask me what kind of wax, sealant, polish, clay bar, or whatever they should use I usually list off many brands that are possible, and then describe the upsides and downsides of each brand, where as it seems to me most zaino users will simply tell everyone that asks them (especially on autopia) to use zaino.
Now, not to say this is always true, but many times it seems like this is how it is. For example, if someone asked me to recommend them a tire shine, my response would be something along the lines of: well, for the lowest shine I can think of, try CG natural shine, if you want a tiny bit more shine than that but still a matte finish, meguiars #40 or clearkote vinyl and rubber treatment, however if you want a really long lasting tire product you should try meguiars endurance gel, or ultima tire and trim guard. Whereas (again this is just how it seems to usually go, not always) a zaino enthusiast would simply respond "Z16".