In my opinion, the Glass is the worst of all 3 of the Zagg products.
1. They chip like mad. I have one on my iPad Air 2 and I have never dropped it and always keep the cover on when I put it away.
2. There is a reduction in screen sensitivity. I have never had any problem with screen sensitivity with the HDX. Or the original Zagg, for that matter. This one? At one point, I took it off so I could prove it was not the iPad. And it wasn't the iPad.
3. Too, too thick. The Glass is a whopping .4mm thick. That is more than double the thickness of the HDX. I found it to be a problem not only with cases, but the Touch ID is much harder to use, sometimes impossible, because the button is now recessed.
4. Massive fingerprints with Glass. I find fingerprints on the HDX, but it's far more visible with Glass because HDX is more matte. (I kind of like the grabbiness of the original Zagg.) The HDX is much smoother, though. And thinner. And self-healing. After about 1 month, the difference between Glass and HDX as far as visual quality is indiscernible.
5. Front-facing camera is covered by Glass?!? Inexcusable.
6. And the WORST OF ALL: GLASS DOES NOT OFFER SHATTER PROTECTION!!!
6. Yes it's clearer. Yes, it's easier to apply. That is it. But yes, it is also more expensive, too.
Bottom line, to me, Glass isn't worth the money and you may actually cost you.
You pay more for Zagg, btw, because you pay for 2 or 3 replacements.