Personally, I'm over Zaino. Just so much work and so many different products to use, I just don't have the patience for it any longer. For me, a combo like Power Lock topped with a nice wax much more enjoyable.
I'm still not sold on Powerlock. Mainly because I have like 8 sealants right now, and do not want to buy another lol.
Nothing wrong with that, other than you are depriving yourself from trying other lines that you may end up liking even more. There are definitely other products out there that work as well or better.