The application is no problem, easy and bubble-free to accomplish thanks to good instructions and accessories.
But what I found out: the film takes significantly the sharpness and brilliance of great iPad displays. I have resigned myself to the first, because the film feels great and looks very classy even when switched off. But now I have it removed, just for me as a photographer, I need a brilliant and sharp display.
Therefore, I have now from the same manufacturer bought myself the shiny foil and behold, all the problems off the table. For some finger print prone, but a death you must die as we know :)