wish I had read the reviews.yes it's cheap, very cheap but doesn't provide full face edge to edge cut outs nor have cut outs or a top level plastic removal cover so not as good as the one it replaced.
spend more and get a full face one.

The glass is fine, it is as small as needed to fit well without gaps in the corners and edges.

Just as I grabbed the protective cover to remove the sticker in order to place it, it broke in my hands. This has never happened to me before!!! It must be the worst thing I have ever bought.

The glass on the poco f3 leaves significant gaps on the right and left, but it's okay to touch. As for durability, time will tell...
...a few months later... After 2 good falls, the glass cracked somewhere and there are some damages on the edges, which are probably from taking it in and out of the bag that I carry to work. Overall, it turned out to be good and it did its job

Very good even in the corners. It does not distort the image. Take it without fear, if you know how to install it, you have no problem