Reading other reviews did help with the purchase decision and install of this product, shower running and cleaning cloth in hand it took less than 5 minutes to fit in the bathroom, the instructions were good but not perfect, had a few bits of dust underneath, but these were easily removed using the sticky tape method, just don't peel the yellow tabbed protective film off too quickly and try to pace it with the amount you're adhering to the screen, not exposing too much of the sticky side, and it should go on virtually 100% perfect 1st time.
I had fitted the Power Support savers to both mine and my wifes Iphones before, so kind of knew what to expect if I got it right, and the pitfalls of getting anything caught underneath.
Don't just whack it on and expect to remove all the dust particles after, remove any contamination as you go, and it will save a lot of messing around with it later, but if you do get any bits after install carefully remove the saver, again with sticky tape, and re-apply after removing them (it is a lot more difficult this way though as it's like a dust magnet).
Steady wins the day!!