I have had it for about a month. Initially, I got confused during the installation. I think it didn't have complete instructions, even though it had a diagram. I did something wrong and when I tried to put it on, it folded almost in the middle and I had to hold it from where it sticks to the screen, even though I used the guides/stickers. Maybe it should have said to remove the top membrane first and then put on the adhesive guides, I don't know.
Secondly, it applies very close to the screen, resulting in it slightly covering the camera lens, as it has slipped half a millimeter below for me, but this is a placement issue (with a millimeter deviation though).
During the installation, which I managed to do, I had bubbles, which indeed disappeared within 24 hours.
When you look at the screen from an angle to see a reflection, it appears as a slightly grainy overlay. With the screen on, of course, there is no problem.
Immediately after installing it, I also put on a protective case, which didn't seem to affect the edges. Initially, it seemed to exert pressure especially on the corners, but probably after the first day when it adhered well, nothing else appeared.
It has a nice soft feel.
The only thing that saddened me and I consider a major flaw in terms of durability, and that's why I give it a low rating, is that I put the phone in a small women's makeup bag (meaning very small) and it seemed to struggle at one point and permanent long bubbles formed, like inflated scratches. Okay, obviously if I didn't have the membrane, the phone could have been scratched on the screen and it protected it, but come on, how much did it struggle and get permanently damaged? It wasn't loose in the bag. But still, with the screen on, you can't see anything.
The most likely thing is that I will buy the same one again to replace it, now that I have experience in installing it ;-)