I did the Zaino full treatment on my hood and could not tell a real difference between it and the Meguiars system.
The difference was noticable on my wife's dark blue vehicle.
Zanio just does so much for the darker shades. It brings out a great deep wet gloss to the paint. I have seen great results on silver and white but you just don't get that deep deep look that you can with a darker shade. I know this prob has'nt helped you much but one thing to keep in mind if your worried about the extra work don't. Zaino has got wonderful staying power. It really does'nt take long to do all the steps once you get your routine down and you surely don't have to do them as often.:read: