I already had on my Nexus 5 in use and two other devices this matte screen protectors. The matte layer gives the display although a grainy appearance, which the hard-won resolution precludes but the smartphone can be used for even in bright sunshine. However, those who use their smartphone as a make-up mirror, for this protective film is of course not;) With heavy use, this film holds approximately 1J and the matte layer over time zusehens smoother. Is also pleasant that the film can be easily degreased. Whether the film is grease resistant, I do not know, but it at least gives that impression. To which I never want to do without, is the comfortable operation of the smartphone. Depending on the type of house and texture you slide without foil partly uncontrollably across the screen, or one sticks. With the film to me does not happen. One more thing - so far I've always managed to scratch my displays. Thus, for this reason alone, a protective film for me is a must.