I just received my tempered glass screen (iPhone 6 4.7") from amazon:
Amazon.com LUVVITT iPhone 6 TEMPERED GLASS Screen Protector for iPhone 6 Air 4.7 inch Does NOT fit iPhone 5 5S 5C 4 4s or iPhone 6 Plus 5.5 inch screen iPhone 6 Screen Protector - Crystal Clear Cell Phones Accessories
My impressions:
*It was ridiculously easy to put on. There are no bubbles at all. It came with an alcohol swab and a microfiber so it dealt with any possible dust that could have gotten in there.
*I lined it up really well, but I could see someone having a hard time with that, but that would be the same with any screen protector, really.
*I LOVE the feel of it. Its less 'rubbery' than the traditional screen protector, so my finger slides on it just as well as it would if the iPhone was naked. It also has a certain sturdiness that makes me feel like it would hold up if I put it through some serious stress.
*Drawback: Because of the curved iPhone screen, the glass cannot cover the edges of the phone, so there is a 2mm (I measured it) border around my screen protector that is unprotected. The protector is almost exactly as wide as the display, and tall enough to hit the bottom of the home button and the top of the microphone.
I have a really great case on the phone so I'm not too worried about scratching that very small area. I thought the edges of the tempered glass might have felt weird, but I so rarely touch the edges of the display that its not an issue.
I'm very glad I have this tempered glass screen protector.