I have bought this product three times!
At the first assembly I have overlooked a speck of dust and wanted to take the glass to remove the speck of dust.
Since I did not succeed, I have under taken with a pinch of the edge, while obviously damaged the edge, so that now a small spot was at this edge, on which the glass no longer rested plan.
But one can not attribute the product this, here was simply a mistake on my part in the assembly before!
This bothered me, so I have two glasses behind summoned (for the event that during the assembly again next goes something).
Now I have as far as possible attention to absence of dust (I cleaned the screen beforehand with damp lens cleaning cloths, the included microfiber cloth fusselte too much) and lo and behold: the first try, the glass was perfect!
Now I have an unused glass as a substitute at home ...
Oh, and that such glasses certainly suffices as my child protection has proved with my former Samsung Galaxy SIII.
The SIII dropped her down, hit slightly to the side and there was damage to the frame, also splintered the protective glass, but the display itself was quite.