The film was delivered very quickly. The instructions for applying was short but precise. The included microfiber cloth is well suited to wipe fingerprints from the display, in my opinion, is the lens cloth Fielmann but even better suited. Since I've stuck some films on various displays, I took for this film much time and leisure, because "good things take time."
On the display film itself there are two protectors glued, which must be removed before and after application. This is described in detail in the manual. After the scratch-free iPhone display was thoroughly cleaned of fingerprints and dust, the first protective film was peeled off halfway. The display film "sucks" thereby automatically to the display without showing any air bubbles. The second half of the protective film was quickly removed, but it has not been possible for me, the display foil to the front camera and handset apply without bubbles. Even in a corner did not stick the foil. Especially at the corners, it is unfavorable because the screen overlay when inserted into the pocket then bends and pulls the entire film from the display.
When pulling off the second protective film is, unfortunately, the film sparked display again completely from the display, so that the process had to start over again. Unfortunately, it was not possible for me to re-cleaning the display, to bring the two previously mentioned areas, the film without bubbles to stick.
Conclusion: Probably it would have been better to invest more money in a good display foil. In any case I've decided to protect my iPhone through the Artwizz SeeJacket Crystal Cover. Here the whole iPhone is well protected from dust and scratches. Cheap display films that do not adhere to, no longer buy in the future.