I let the Verizon salesman get me to buy their overpriced protectors (3 for $15...) I really don't like it. It's as wide as the screen, but long enough to cover the Verizon logo on top, and the softkeys on the bottom. It has cut outs for the camera and the light sensor.
What I don't like, is that despite the best efforts of the Verizon salesman (and he did try his hardest, there isn't a spec of dust under the cover) the edges don't stick. This is because the phone's glass curves to the edge. This leaves a tiny bit of the protector that isn't stuck down. Not only does this look bad, but it's also going to attract dust and pocket lint to get in there.
Furthermore, the screen protector also detracts from the aesthetics of the phone, it shows finger prints much more than the gorilla glass 2 does, and it adds a very slight color tint.
I think I'm going to remove it and just go without.