The biggest diff between Zaino and Klasse is this.
Zaino is more of a wet (to me - plastic) look.
Klasse is more of deep (traditional Carnauba Wax) look.
Now don't get me wrong the Klasse is deep but when I want to go crazy, I sometimes put on some Carnauba (Blitz) on too on the hood and trunk, during prime Summertime, but don't have to, just do when I feel I want to be able to look INTO my car.
Depends on what you prefer.
If it EVER warms up here in MN, I plan on doing my Spring wax job, I can take some before and afters if you would like with Klasse. If I do a single coat of Blitz I'll do a shot before and after that as well.
NOTE: The Blitz is only good for two to four weeks and is a dust magnet.
EDIT: After thinking about my reply: I thought it required an edit. In reality both sytems results are simular in the shine. The reason I personally prefer the Klasse system is this. I like to get the car good and clean once a year (sometimes even clay) with the Klasse you use the AIO and clean her up good and start over. I am uncomfortable adding layer after layer which is typical of the Zaino system. I also like to play with more traditional waxes too. Again not bashing. Do the research and pick a car care system that works for you. One final comment. The lack of haze with the Klasse system again is in the eye of the user. I prefer it. Because if I get some SG into a crack that is difficult to get out. It pretty much disappears verse a white yucky area.
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