Did the thing for a few days for the X100, have before that glass protectors used for other cameras and never had a problem. But somehow does not seem enough distance between the screen and the protector to be, if you do it on the X100 (funny that others have made seemingly better experience). Anyway, of course, changes the appearance, if a portion of the glass touches the screen and some do not, so air is still in between. When I press my finger nail on the edge a bit between the glass and the camera raises the distance restores, but once a little pressure on the glass overloaded the central part and the surrounding area häftet back immediately to the display. This creates so to speak, "giant bubbles" that are really annoying when the display is off. If it is, it's usually much brighter than the mentioned effect, and it is hardly noticeable. Nevertheless, who offers his glass for the X100, must also sien sure it is compatible.
I let it anyway tuned, because the protective function fulfilled it without any problems. But the purchase was disappointing.