The film is very precisely cut and of course requires a certain dexterity. It is crucial that you work absolutely clean and in preparation of the film above paying attention to align them exactly in the middle of the speaker. Then press the first 3cm and ensure parallelism at the edge of the unit. If these two conditions are compared, the film can be on a train clean hang down.
Naturally, the brilliance of the display is a bit limited by the anti-reflection (refraction), thereof one must be his before buying clear. In return, the readability of the display accordingly improved in difficult lighting conditions.
From me therefore a perfect score, especially since the price of 2 films is absolutely fair.