3M paint protection experience?

Has anyone tried the 3M spray on paint protection? I searched but couldnt find anything. It is supposed to be like a spray on clear bra and can be peeled off. I saw mixed reviews on Amazon as is usual there..either really good or really bad. I am hesitant to spray something on a new car. However $25 a can I might try it on my 2005 G35 that is sand blasted first. Any input is appreciated.

http://3mauto.com/paint-defender-spray-film.html