Basically good and maybe a tip for applying

The film I like very much and makes a high quality impression, the operability of the device is not affected. The printed grid does not strike me so thoughtfully, but not here so executed disturbing as a foil for my Xperia Z1 Compact, where I bubble-free application was impossible by the raised print. Again, I have, despite a diligent approach some small dust particles that lead to bubbles caught. It's a pity, therefore, a star deduction.
The screening is not really useful because I always muster films differently.

First, the display is thoroughly cleaned.
Then the film is carefully aligned on the device, without any of the protectors is already removed.
Then I will fix the bottom two small Tesa strips to adhere only weakly (milky version) to fix the slide with proper fit on the device.
I check again the seat and then flap the film up and wipe the screen again with the cloth.
I then removed the protective film for the bearing surface on the display. I close the protective film then slowly from the lower longitudinal side (where the film with the Tesa strip on the device depends) on the display, slowly spread by means of the attached piece of cardboard.

It would best succeed in the grid is therefore superfluous, two tiny strips weak adhesive Tesa film would be better.

Despite all the efforts I have unfortunately still collected finer dust particles, maybe I'm too slow. Despite a star deduction, but as I said, it's a quality product.