One flaw, although only a small ...

I have never before used a lot These kinds of films, and which glass never. One can find the time but found that Gorilla Glass or not, it just come on it scratches that destroy the image of a beautiful smartphone, and by the way it greatly minimize the resale value.
So I am now the proud owner of One + One (still not sure whether I keep it, because the size), I thought that it would be useful to acquire reasonable protection for the screen - sooner said than done.
The glass sheet is not very cheap, and since only one is delivered, you have only one attempt to apply them correctly. I was very skeptical, but it was in fact easier than any other sticky film. The panel "sucks" formally on's display. Corners smooth, finish.
What bothers me personally, though, is that you have obviously chosen the recess of the glass sheet for the speakers so that the proximity sensor is located in the recess. The speaker itself is good but one centimeter smaller than the recess, so it looks as if the film it would be wrong :-(
I do not know if it goes, but in my opinion you choose the recess so that is also the right of the speaker, a cover (although not required), or you can the recess only for the speaker, and leaves the proximity sensor under the glass - just as I think it looks easy unssymmetrisch from, and although perhaps the film is good in itself, but we see all the time that a protection plan, and that should not be the case especially with a good film.