Since I still wax/seal my vehicles periodically during the winter, durability isn't a real big issue, but.....
Since there is always the possibility of something keeping me from that plan, I do use what I consider longer lasting products during the winter weather.
Interestingly enough, I have been happy enough with the appearance of those products that I also use them year round.

Optimum Opti-Seal, Duragloss #105 TPP, and Collinite #845 Insulator Wax seem to have become my go to products the past couple of years. I also use Duragloss Aqua Wax regularly during the drying process pf my rinseless washes or after using Poorboy's Spray & Wipe as a waterless wash.
The Opti-Seal is high on my list because it is so easy and so fast to apply. The DG #105 has a little cleaning power which comes in handy occasionally. The #845 being a true wax with no cleaning abilities, I don't use near as much as I used to. It does have quite the reputation for durability, though.
As far as Zaino is concerned, I have not used it since the "Pro" suffix was added. It no doubt is a fine product, but the few obnoxious users that jump on your case anytime you don't worship at the alter of Sal have turned me off completely. Chances are I would buy the products I use rather than use free Zaino.

FWIW, I do realize that not all Zaino users are like that, but enough were to help me make that decision.