I had the Bodyguardz, actually I had three sets applied to my phone with no luck.
I bought the first kit through the EIP store (quick shipping BTW) and installed the first set according to the dirctions and online video. Within two days one of the corners slightly lifted (on the back piece) and when I put the phone in my pocket, the whole corner peeled up. So I pulled the back skin off and installed a second back piece and made sure to stretch the corners good - I also sat for about two hours pressing the corners into place (while I watched the game). This one lasted about five days and again, a corner lifted, then peeled... third back piece went the same way.
I love the skin theory but I have had ZERO luck with them, and I am pretty gentle with my phone. I also thought I did a decent job with the installation - guess I was wrong!
