Zymol and Zaino = alot of hype. And expensive to boot, especially when Zaino doesn't offer larger sizes. Einmann Fabrik, Chemical Guys, Poorboys World,
Menzerna, Optimum, Detailers Pride, Hi-Temp... better value.
Sorry, didn't answer your question. Always nice to see new members, but the two brands you mentioned are very popular an auto forums, but aren't as popular here as some of the brands I mentioned above (not suggesting they're not used here by many proficient detailers, of course). I've used Zymol and thought it was very difficult to work with. Haven't tried Zaino, as I like to buy in volume to save money. Neither brands, in my opinion, offer anything that the others can't accomplish, and often at a fraction of the price.