I really wanted to be happy with the Zagg on my iPhone. The material was such an interesting piece of tech. I ordered the full phone skin - front and back.
The installation is, of course, a pain. I wasn't really worried about that. You only have to install it once.
I was religious about following the directions, and installed it with no particular problems, then let it dry for 12 hours or so. After this, there were thin vertical lines running up the phone's screen. Looked like some of the liquid got trapped under the screen protector even though I was extremely careful with the squeegee and pushed quite hard to get everything out.
I contacted Zagg, and they gave me B.S. about not letting it cure for 24 hours. They claimed that using the phone without letting it dry for 24 hours was the cause of it. Which isn't even logical, but to their credit, they offered a one-time complimentary replacement if I paid shipping.
So I was now out the cost of the skin, plus shipping times two. But I was again okay with this if it worked as well as they said.
The second installation had no problems with the lines on the screen. It only took a few days, though, before dirt and debris began working their way under the protector. The back was the worst - the edges began peeling away and there was nothing I could do to get them to stick. The front skin got crap under the edges and the edges never properly stuck back down after they were cleaned. But, of course, you can't remove it and re-apply. Couple all of that with the orange-peel effect of the screen and the reduced sensitivity and I was just thoroughly unimpressed with the whole setup. Protection was fine but it was constantly peeling up and dirt was getting trapped under it. I gave up and ditched it.