i just had my x outfitted with the zagg screen and body protection. at first i wasn't going to do it because of the horror stories i've read about but i decided i love how perfect the condition of my phone is so i decided to get the screen and body done. i went down to best buy and bought the zagg protection and i had them intall it. it room about 15 minutes and when my phone was handed back to me k was relieved to find that it's still working perfect and in no way did it harm or damage my phone so of anyone was wondering whether or not to use zagg i'm living proof that it works great and doesn't mess up anything with the phone ha. have a nice day hope this helps.