The film can be installed very well and fits really well on the display of the EOS 600D, for the fit I would give 5 stars. The protective function is certainly fine and the non-reflective surface serves its purpose, reflections are really no problem, again, I would give 5 stars. However, the film has a few drawbacks: First, it is very sensitive to the fat can indeed be removed with a microfibre cloth good but is clearly more visible than when you do not slide on the display. Secondly, and this is the biggest drawback: The film changes the optical characteristic of the display term. Even if it is completely free of grease, you suddenly see "Pixel". At first glance, you might think you would have a significant noise in the image, and this effect is directly attributable to the film, which I think is very unfortunate. Therefore, in total only 3 stars for this product.
I had 4 years ago the same sheet on the 400D and then could not find the "pixel effect". Probably has something changed in the structure of the layers here.