I bought my Zagg at BB but opted to let myself install it after seeing a slap-happy job a third party dealer did installed a screen protector on my fiancee's MotoDroid. Granted, he was her friend and gave it to her for free, but the bubbles would drive me nuts.
It installed fine, but I'm curious if anyone else noticed a weird ripple-look (not perfectly flat surface) when you tilt the phone and reflect light off it? It also tends to feel "tacky" compared to the cheap (and visibility-degrading) VzW screen protectors. Plus I've actually acquired some scratches on it, or marks of some sort, that seem to not disappear... which is strange for something supposedly impenetrable.