The protector itself works really well I bought two 2 packs first one was botched tried again using hinges and trying to place down like in the video link provided had to readjust due to the spacing difference since it doesnt cover completely to the edges like 2 mm on each side so corner wouldn't hold down completely. The next one I used 3 hinges to line up and got it almost perfect but one corner I lifted to get a spec out. And finally on the third tablet i used the three hinge and pulled the backing tapped the middle and it suctioned right to the surface. It just takes practice buy extras which I would have if they had bigger packs. Overall good product just need better instructions