The Martin Fields OLP is excellent! I only use the screen protector though, not the other little protectors, I've had ONE screen protector since I got my
N95 back in April last year! It hasn't come off, peeled at the edges or been scratched at all, and when it gets dirty, simple wipe and it's as shiny and clean as new :D Oh and you can't tell it's on there once you put it on!