It is a personal preference. I switched to
klasse because 1) I could bertter layer carnauba on top and get that dept (not suggested for zaino per Sal), 2)less dust attraction IMO, 3)less time (with zxf the time difference has diminished) since more stages of prep work is required.
AIO is a great base to use as you can top it with nearly any sealant or carnauba. Both Zaino and Klasse are great products and I do not want to get into any heated discussions b/w them (there are threads already dealing with that). This is just my choice and I love the klasse.
