Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Hard to install. Hard to remove. Not worth it.

I just installed the Sony Clie screen protector on my NX70V. First of all, the installation didn't go smoothly. It was really hard to make sure that there's no air bubble. Then it was hard to hold and not touch the bottom side. I had fingerprints all over the thing.OK, I finally had the thing on. But the protector already had my fingerprints and they were visible. So I decided to remove them. But removing it was no easy task. It stuck to the screen and I had to pry it off from the corner. I was afraid of scratching my screen so I spent a lot of time to slowly lifted one corner. Finally I got it off.I think screen protector in general is more problem and it's not worth having. I'll use my Clie without protector from now on.