We have the film attached to the window, and it is virtually opaque, how beautiful frosted glass, and a real eye-catcher.
It only detects light through schemes and the film keeps awesome.
The attachment was not difficult, if you follow the instructions on the manual.
One should only make sure that the edge of the window is a bit of space, so that the film does not come loose again.
The note was missing the only on the instructions.
We had it even trim before, which was not a problem with a sharp cutter, ruler and cutting mat. But our window also has no standard dimensions.
From me by the price-performance point 5 of 5 stars. :)