Super invisible protective film with potential deception

A little anecdote:
I have applied the film last night and was initially very disappointed. From the clear display of the iPhone was nothing more to see everything blurred (see review by Eric), a thick and widely perforated film remained. Conclusion: I have abgeknibbelt and thrown away the film again, I was walking to look at relevant forums to alternatives and have not understood at all the positive reviews here.
Today I see a closer look to the iPhone, and discover that though an ultrathin and clear film is almost invisible on the display. So what did I abgeknibbelt, was yet another carrier film for applying that when removing the blue pennant (Aufbringhilfe) was not having gone off.
Final Conclusion: I am very excited by the totally invisible ultra clear protective film. Maybe I should have read the instructions in more detail or a subordinate clause to deduct not only the blue flags but with it the Aufbringfolie would, me and maybe Eric (see bad review below) helped. One star deduction for not very clear instructions.
Otherwise, the films are very professional in sealed blister, with a small cleaning cloth and a map to Blasenwegdrücken (but you need not, because when applying no bubbles).
But again a star to. Is it possible to deduct half a star?