Quality of films deficient

The film can view the front and back with a little preliminary work easily applied and then holds firmly and without slippage on the display (if you follow the instructions I can not understand the other reviews, the film was placed there apparently wrong not canceled and in connection with a card nice and smooth).
However, the quality of the film is flawed. After just one day in your pocket, the protective film was scratched over the entire surface
(No idea how something can happen in a pair of jeans when there is nothing except the phone in your pocket, the jeans is made of normal fabric without buttons (at least not in your pocket)).
The mobile phone can be easily operated with the film (SMS, games, Ingress (incl. Glyphs) etc.), the shape fits exactly accurate.
I would like to highlight the scope of the positive protective film, there are three films in (not just two as indicated). Also is a good guide.
Who often carries his cell phone in your pocket is something else possibly happy, who will be mobile again packed into a cloth bag to be satisfied with this product in any case. The price was good, the function also, only the durability of the film I do not like.