Well, I just observed my first problems with the infamous Zaino water spots. I polished my 98 4runner about 3 months ago and it was looking pretty good until recently. Well, the I washed it today and noticed some pretty severe water spotting on the hood and other horizontal surfaces. I know it wasn't there until recently. We just got through pollen season and I think the pollen's acidity contributed to the problem. Anyway, I'm pretty disappointed in Zaino's inability to provide better protection than this. I was a pretty loyal Zaino user, but now I'm looking elsewhere. In hindsight, Zaino probably cpntributed to the water spotting problems I've had with my truck as well, I just didn't have a good baseline with that. I know this is a common problem with Zaino, I just had to vent. BTW, the car is garaged all day.