The films were delivered really quickly and the product description has not promised too much. Since I have always been unable in the past to install protectors on cell phones free of bubbles, I was even more thrilled that it worked almost entirely in these films by themselves without a single air bubbles.
Just the screen well from dust and fingerprints clean (quite possible with the supplied cloth) and then remove the protective film of the film, create and push down slowly.
Voila - fitting, no shaking and has no air (bubbles)!
The film is really very, very transparent and affects the use / view not a bit! Only the feeling when painting over it somehow feels a little rough ... but may be due to wear.
The only downer is that the film does not cover the entire display covers (loud other product not possible due to the vaulted Dispplays the Galaxy S3).
Conclusion: Highly recommended!