You need to be an expert to handle the product. Some bubbles were formed but you can remove it immediately by massaging it. If you leave the bubble, it will stay forever. Since it sticks really fast, I'll advise you all to arrange the camera, flash and light sensor holes properly before finally sticking it. Otherwise your money will be wasted!
I gave it 4stars coz it's perfectly fits that whole screen but at the edges we will find some space n that is not good ,may be because of that I feel like this glass will not give 100% protection for the screen.