I've used similar, but phone-sized screen protectors before so installation wasn't a worry for me - AND I was paying attention to what I was doing. Unfortunately, unlike my phone's vendor, I could not tell which side had the protective film because it was crystal clear - and usually that's a good thing. I mean, I REALLY thought I had the correct side down before attaching the "hinges" but no - and that REALLY jacked up the process. Despite my efforts with cleaning with profession microscope cleansers no less - I have smudges and bubbles that make using my Ipad quite distracting. And after reading the reviews more carefully, what I thought were my additions of particulate matter may have also been there. Giving three stars however because a smudgy, bubbly screen protector is better than no protector at all. At least I hope so. And if I had guessed right and gotten the correct side down to begin with, my end result would have definitely been better.