I bought one of these off eBay after reading this post.
So far I'm in love with it. It was seriously the easiest screen protector I ever applied. Perfect fit, I literally lined it up and set it down gently and it sealed itself perfectly. In my opinion it's much better than the wet application screen protectors I have been using. Perfect fit with my case too.
Even if I only get a few months out of it, for $6 I figure I can't go wrong. I had always wanted a glass screen protector, but at $20+ I was hesitant to purchase one. Once Xtremeguard has them on sale again I will probably pick up a pair to have as spares. I hope this helps anyone who is debating about buying one!