It can be a whole day long process if one did 3-4 coats without ZFX. With ZFX (quick dry drops) it only takes 30 minutes (on average) until the Z2 (polish) dries. I put on 2 coats and keep the everyday shine going with Z6 Gloss Enhancer (something you spray on and wipe off).

As far as how long it will last, will depend on how many coats one puts on and maintains. Depending on conditions it could be 2-3 months. I wish the pics cam out better, but the one of my reflection says it all.

I know a bunch of members got free samples of crystal guard, and was wondering if anyone has tried it?

For those staying away from Zaino becuase you think it's too long a process--you are wrong (it's really easy, just read the very detailed and easy instructions they send). Either way, Zaino or CG--they will both make you Xfire even more attractive--and I thought that was impossible