I resented around for several weeks because I was dissatisfied with my protectors. But from the beginning: I bought the iPhone 4 me a few weeks ago, and then fetched a protective film in the electronics store to me. Unfortunately, that was quite complicated with the attachment, and I just do not get. The film was wrong and it has cost a lot of money. Then I bought at Amazon foils, with this, I was not satisfied. The attachment was equally difficult, I got only the third film a fairly reasonable result. The first two were very dirty after several attempts and could no longer be cleaned. As a Council, rather than standing, that the slides after washing Reuse left, but did not help me this advice further, because the films were to use only further dirty and always less.
I recently bought myself these films, and I'm happy for the first time. Although the display film lubricates (I use a smooth films), but not nearly as strong as the films that I bought earlier. The application of the film I think is much easier than in the films that I have used before.
Another little tip: I had after bonding this film a nasty lint under the film, I was able to remove these with a Tesa strips super. I have the film up to this point simply peeled off, the Tesa strip briefly stuck to the infected area, this then withdrawn, and she was gone! But the film is removed again dangerous, because then quickly settle other fluff. So be fast, as long as the display and the film are otherwise clean!