I drove all the way to Niagara Falls NY (one hour each way, plus a half hour wait to cross the border) a few weeks ago just so I could buy this stuff! I was not disappointed, it's super easy to use and gives a great shine. To add a touch more shine, I top it off with Meguiar's Ultimate Quik Detailer as well. I will never go back to a conventional wax/sealant again, I love how quick and easy this stuff is to use, and in the long run I think it'll keep my cars from getting scratches in them, as it's a much gentler process than with regular products that you have to wait to dry to a powdery haze and then use pressure to buff off.
I found the quickest way to use this stuff was to spray it onto a microfiber sponge instead of using the supplied cloth. This allows to get into tighter sections of the car with ease as well.
I'm not sure how the durability of this stuff is, I doubt it's anywhere near a year but I don't mind reapplying it every few weeks, it's only a little bit more work than using detailing spray on a car (which I do after every drive in the Corvette already, to remove the dust on it)
I still can't believe they sell this stuff for only $12.97 at Walmart! And one can goes a long way, I've done 3 coats on my Corvette, one on my Honda and two on my wife's BMW and the can still feels full!