What's there to say, it's made of schott glass, and you can see your screen. I mainly got it because the stock screen protector sits away from the screen itself and so it's not so easy to see what you're doing with that on. At least with this, supposedly, this cover will be more resilient to scratches. We shal see.
Just to add to my thoughts, as I've owned it a while now, I've taken one star off because it smudges very easily, so whenever you want to see the screen and you've got bright sunlight around you, you have to wipe it with a cloth/t-shirt etc.
Oh and haha re the second person who wrote a review about it not including the top cover glass piece, I guess he forgot to read the first person who mentioned it :P