Protects the screen really well, and keeps it clean too. You do need more than one protector sheet as you need practice to get it perfect. Do not use the cleaning cloth as it leaves fibres behind. And the Application card is useless. I used my specatcle cleaning cloth. Then just apply the protector from one end to another, not worrying about the bubbles. Then slowly lift from sides a little at a time and remove the bubbles as you press it down again. Takes time but works really well.