She was easy to install on the display. Is simply pressed on the display.
Also fits properly.
Since you will be stuck but only on the edge, is created when you press in the middle of the display, so some sort of stain.
Looks a bit ugly and can affect the readability of the display under certain conditions.
With ~ 17 Amazon price I think it's part of something expensive, is only a little plastic.
But it does what it should: Protects the very scratch-prone screen Sony DSC RX100.