It is about 2 millimeters smaller than it should be in both dimensions. It may not sound like much, but it is a significant problem in application. Honestly, is it so difficult to produce a product that respects the specifications it promises?
Another important drawback is that it does not have the transparency that similar products have because fingerprints are very noticeable.

Thin and very flexible material. I expected it to be a bit harder and less flexible. It resembles more a good adhesive thick membrane, rather than a plexiglass. It says it in the description too, "Scratch-resistant hybrid Tempered Glass that combines the durability of glass with the processing and flexibility of a protective membrane."