The real difficulty is in fact exact and bubble-free application of the film on the display. The exact alignment I found here due to the long edges rather simpler than mobile. When the bubble-free application the smartphone already is not so simple, as is the tablet at a real challenge. So once the display of grease and dust free, then remove the cover sheet and attach correctly on the display. The film is so tight that you have the same pull the complete protective foil. But this poses a great danger that small speck of dust settle on the back and then lead to blisters that no longer can be removed also, since the film no longer lies flat. Of course, I also looked at the video because all looks quite simple, but it's not, unfortunately. Apparently was the shot in a sterile room :-) The first of the two films I was able to dispose of the same times.
In the second (and last), things went much better, but not completely free of bubbles. However, this time I have on the film dispensed again deducted, since the result so just gets worse and worse. Part of the bubbles I could with a credit card, which I wrapped with a microfibre cloth smooth or at least push so far to the edge, that they no longer interfere.
However, you should evaluate the film according to function and not according to how clever you are, raise it. In the function, I could not tell the difference between the use of the tablets with or without film. Then I take the interests of Displazschutzes prefer bubbles in purchasing. With the quality and great value for Verhältns you can not go wrong. From me it's in spite of the difficulties and my clumsiness 5 stars.
