I have this matte one that includes an install frame for the perfect installation (one of the easiest installs I have had).
If you are going with glossy, then the screen protector won't be doing much, but this matte screen does help a lot for reflective glare (although in some cases if the glare is intense enough it still won't help). Also rejects fingerprints, but as others mentioned, the fingerprints aren't visible anyways when screen is on. The cost is the contrast is a bit muted, but not by much. Didn't notice any effects on sensitivity, but prior to installing it, I did use the touchscreen with the factory plastic sheet for a long time, so maybe your experience would be different if comparing to bare.