I used Zaino on many of my cars, but used the accelerator for the initial application. As good as the product is, I found that I got just a good results using Meguiars Ultimate Liquid Wax - plus I can do an entire car in 30 minutes as there is no cure time. And like Zaino, no residue.I've been using Zaino exclusively for the past 6 years or so on all of my cars. I like the ease of use by hand as I've never used a machine polisher. The paint used by each vehicle manufacturer makes a difference as well. For example, my black Acura MDX had a deeper shine than my black MB ML. I've also never used the accelerator. I let each product/step sit for about an hour. Time consuming, yes, but extremely easy.
I haven't found that with Meguiars, and my car is outside. Still beads up beautifully. Zaino is very durable - when I used it, I did so every 3-6 months at most. And not necessarily because it required reapplication. But those were for garaged cars. Manzerna may be great, but it has lots of steps - I don't have the patience anymore... :tsk:The problem with the Meguiars is when I go through a thunder storm it's gone. I'm going to test the Zaino for this. So far my car is outside and no water spots after a week of rain. I'm interested in that Manzerna though next.