UltraStable and clear, but Seems to introduce purple color HUE shift (subjektively).

The cover is packed According To Price: fiber tissue and sticky plastic bar cleans the screen of the phone. And the cover sticks to the screen without any bubbles.
All cutouts in the glass cover are reasonable, though the home button Circle Could be a little bit larger, just for the case, When the cover is not perfectly centered.
I use 'Draco Design' bumper for heavy drops protection and it fits to the cover nicely.
First several days you can notice the thickness of the cover, When pressing the home button. Otherwise the glass is so clear, did you forget about it, unlike my previous awful mat foil. The cover gives not more reflections than the original screen and everything is nicely seen even under the sun.

The only point of my concern is visible shift of color hue to purple, but may be what this only in my case (I am not sure if the screen is the original one).