They work well. Have taken damage, saving my screen, I'm sure. When my phone has fallen screen down, these have torn or distorted in a way to protect the phone glass. Glad I had it.
Great screen protector at a good price for a pack of 6. It fits the main display just fine and installation was easy. I put one of the extra protectors on the duel display as well though it does not fit to the edge of the glass. The duel screen case is able to close just fine when having protectors on both screens. Hopefully we can get a proper screen protector for the duel screen in the future.