I've used both. Actually I am using both (Zaino and Pinnacle). I just got my new machine and I started off right. I washed the car with dish soap to remove the old wax. Then I applied Zaino (multi-step) in two coats. Then I applied Pinnacle Sovereign on top of that. The Zaino is a polish and shines very well. The Pinnacle is a pure carnuba that enhances the shine and protects as well. As far as the two are concerned the Pinnacle goes on much easier, comes off easier, and it doesn't take as long to wax the car. The Zaino requires you to let it dry completely (taking an average of an hour-YMMV) before buffing. The Pinnacle hazes quickly and can be removed only a few seconds after application.