My Xperia Go had already experience some crashes, it also has a display with the advance to a stone. The display is quite, the film has a tiny hole.
Even if I look at the other scratches on the film, I'm glad that the film has captured all this and it is not directly on the display.
The customer service by the manufacturer is also very accommodating and friendly.
In the latest films (for the S4 Active) I read in the tips that you can remove lint from the adhesive surface with adhesive, and this really works.
The application is an art in itself, that does not "just" quickly. But you should take your time and choose a convenient time for the purpose of patience. The film is somewhat rigid (because fat (which is good)) and really tailored precisely. Therefore already brings the smallest angle in the one they aufklebt wrong to scupper the entire project and you start from scratch. When she sits, she does but perfect!
These screen protectors are worth the money (and nerves)!