The protective film acts qualitatively well so far (only a week in use). The price-performance ratio was right in any case. The attachment of the film is not difficult with a little skill, little air bubbles can be subsequently at least minimize yet. The use of mobile phones via the display is affected by the film in any way. One criticism is to be noted here, however, which was already mentioned in the previous review: Yes, the film is deliberately kept small, which is explicitly mentioned. However, I am of the opinion that the film is a bit too small. There remain at the edges of 0.5 cm-free and therefore this part of the display is not protected.