From the actual article, I'm really disappointed. Foolproof mounting? Just not, at least for the Nintendo 3DS.
I have the instructions in the tutorial videos and the instructions on the package followed, so made the screen thoroughly clean and the peeled foil halfway so that the rest can be placed easily and thoroughly.
However, it then began with the bubbles under the film. As in the video I used a plastic card to underscore the bubbles toward the edge. However, that does not work that way.
On the contrary: The map even leave scratches on the film, although it was only lightly coated with the card along. The bubbles have remained.
After I released the film on the screen, I sat right on the second attempt. Screen cleaned again, attached foil carefully and again the same problem.
Sometime it happens, however, that a small lint to adhere to the film and then it's over anyway, because it is impossible, the sticky side of the film to be cleaned (of course).
The money I could have saved me.
The one star it was because of the quick delivery time, and since you can select a star anyway minimal.