I use it too. Its very nice. I especially like the gloss enhancer... Z6... I try to use it every time after a car wash.... Takes me about 15-20 mins to do the whole car... wipe on... wipe off... do not let it dry.
It really enhances the shine... almost as much as a full coat of Z1 & Z2.
The tire gloss is also good, as well as the glass polish. I have both leather treatments, but I havent tried them yet. Ill probably try soon, as my car has been in the shop a few times, last one being detailing work and those damm service techs are filthy... dirt everywhere on the inside whenever they are in it.