Too perfect ...

The precision laser cutting prohibits any approximation: half a millimeter off, it's next door, and as the optimum grip is not sufficient at the edges, we want to take off the film and start over. This part is very easy and deserves 5 stars. Except that any dust that has the misfortune of being caught in the trap of the adhesive side, remains, or leaves the price of a good mark (finger, cutter or other utensil). So unless you want to put this film in a confined space (clean room or lab NASA), and unless you are not as finicky as me, go your way: o)
In the end, good quality equipment that requires perfect pose the first time. But as perfection does not exist ...