I installed the screen protector using the included installation device being careful to follow the instructions as you have only got one shot to install this type of screen protector or you end up with imperfections. The main issue I had is the screen protector ended up a little bit too high on the phone and the screen protector would not completely adhere to the screen. Then when I put the Magbak case on, I then noticed the case was interfering with the screen protector pulling it off of the screen. I was able to get the screen protector to get under the case and the bubble that was created was not as bad, but it still is noticeable. I went against my better judgment and used the included jig, having installed 20-30 screen protectors by hand from another brand for my wife and I without many issues I should have gone that route and installed this product by hand, for a perfect fit. I have to mention, the "classic" Magbak case itself is top tier. The one I had for my last phone outlived the phone it was protecting. The rubberized material is second to non. Has a great feel in the hand, is not bulky, and who doesn't absolutely love the super strong magnets!