It is actually quite nice to have the protection of the screen from minor scratches etc. It doesn't impede use of the phone in any way. As weather where I am has been hot and humid recently...I do find some places where the shield bubbles up a bit. I press it back down. I am thinking I did not wipe the dust well enough before putting it on. But I would quickly replace it with the same when it seems to no longer stick well.
I was a little nervous applying the shield since I've never had to in the past. The instructions weren't very clear and after a few attempts I finally figured it out. I successfully applied the shield and it's beautiful!
Not too happy with the way it went on my phone, but at least it protects the screen. I could do without the sticky mess. The residue doesn't allow it to be pulled off and readjusted.