I was a "doubting Thomas" for a long time about Zaino. Finally, the folks on the Firehawk message board convinced me to spend @ $ 65 for "the kit" and just try it.
I did try it and I loved it. Have used on the Firehawk since it was new in March 2000. I have had several compliments re: 'how the paint looked so good', 'did you have a special paint job?', etc.
I took delivery of the 2003 Av WBH in August. Given it is black, I decided to try Zaino on it (have not used it on our other vehicles since I wash them at least once per week and was unclear how well it would last).
Well, after 3 months on the Av and LOTS of washes I am convinced it it worth the effort/cost. It looks great, it has lasted quite well.
Note 1 - It does not take a lot of the Zaino to go a LONG way!
Note 2 - Zaino has a great website for tips/tricks re: application, etc.
Happy Zaino'ing!