I used Zaino - the mixing wasn't that bad, ZFX and Z2 in a little bottle (came with the full kit I ordered). I only managed to do two coats instead of three as planned, it was just too hot and I have a very short attention span. It really didn't take too long and it still looks amazing 4 months later. It was worth every minute as it seems to repel dirt. I'm sure most similar products all yield decent results really. Since I have a dark color and it sits out in the brutal FL sun near the coast all the time, I wanted protection I wouldn't have to reapply more than one or twice a year, and wouldn't cost thousands.