The film does not cover 100% of the screen due to the curvature of the latter but only the flat portion.
To the extent that the film essentially prevents scratches that's not a problem, the film is also practically invisible.
The film filter a significant amount of light, which can hinder those that regulate the brightness to 100% of their device.
The most problematic issue for me is the treatment of the film is very oléphobe: fingerprints are much more present than filmless and harder to remove.
Once warned, the value for money is unbeatable and reliable seller.