Yeah - it just doesnt work right. I see people with them all the time and just about every on ehas bubbles, trapped lint, lined up wrong, peeling, etc, etc. The crazy thing is that ZAGG claims they have all these awards for their stuff. Im wondering if shareholders of ZAGG are the ones awarding the trophies? Bleh!
I do not use one and so far, my devices have no scratches.
My theory is, these shields were designed to solve a non-existant issue and the matrketing folks simply tell us we will be sorry if we do not protect our screens which likely need less protection than we think.
The glass is quite good at resisting scratches.