I purchased this screen protector back in August and went through both within a month. I reached out to the company regarding the warranty replacement and had a new pack within a few days. As far as protection, they work great, but the first set seemed short lived. My phone slid off a counter and the screen protector popped off and shattered but my cell was perfectly fine. The second one met its end when I reached down to pick up something in the mall. My phone was fine, but the screen protector bounced and slid across the store. It definitely does it's job but once they're off they don't seem to re-attach. Hopefully this set can take more than 1 hit.