Negative falls first on the high price. 8.49 are quite a lot of wood for a screen protector, even if it is larger in size than for a "standard smartphone".
The installation is so fiddly as it was already described by others here and dust inclusions are almost inevitable. When trying to remove trapped dust grains 2 subsequently I have the film at a corner even more messed me. Fingerprint on the underside of the film and more dust and Fusseleinschlüsse.
The enclosed accessories is quite extensive at first glance. A doctor / plastic card and a microfibre cloth. However, the microfiber cloth smeared rather the dirt on the screen rather than take him if you want before mounting the film cleaning. I recommend a commercially available microfibre lens cloth at this point. This does the job much better.
Although the knife is good for uniformly pressing the film at the first application, but not to created air bubbles under the film to push them out. But he is just too soft and elastic. I have these carefully pressed ultimately with your fingernail towards margin. At this point again a note for the good scratch resistance of the film.
Protective effect is very good, installation and accessories catastrophic Price overly expensive and shipping with 12 days even before Christmas just too long.