There are a few types of people. Those who believe that you SHOULDN'T put on a screen protector because it'll interfere with the colors, or pen. Others, like myself, who don't see any REAL negative effects. I only see pros. I, for example, would lose it if I had a scratch on the screen and had to look at it for 2-3 years with a scratch down the middle of the screen. On the body, or back I don't mind... but the screen is the most important part for me! So, I'd say go for it. They're cheap, and they work.