This very fine glass screen very effectively protects the touch screen of my new iPad Air and does not affect the quality and usability of the touchscreen. It ensures an easy but be careful to install in a room where the dust does not fly! If protection is misaligned, you can reposition it without problems but beware of dust that will be glued to the protection part that attaches to the screen ... Fortunately, a small self-adhesive strip is provided to remove the possible small dust but it is quite difficult and almost impossible. In short: you must complete the adjustment of the first shot shield to the risk of trapping small particles (which is my case) between the iPad screen and protection. No annoying everyday because we forget quickly. Air bubbles that form on the installation are very easy to remove with a stiff card (eg credit card) and small bubbles leftovers disappear by themselves after a few hours or a day or two.