Apply This went super and without bubbles, the films appeared quite stable, I was very happy until I few days ago my Xperia Z out of his pocket took (in silicone sleeve) and a 0.5cm long bubble in the bottom of the screen discovered, caused by a cut at this point. Where the cut came, I do not know as I (I would therefore understood scratch, but a cut?) Only one Action Cam (without edges) and my headphones in the pocket had, in addition to the smartphone.
Well, at this point bothers me the bubble thus created not really, so I can live with it ... and if something should happen again, I have still 2 other films from the same pack.
Conclusion: Top films, act very professional, only the scar is a trigger, just before the film should protect yes.