After reading the minutes of testing and reviews I expected an exceptional product ... just like its price. Packaging, presentation, aspects of the hull - it all starts well. The hull is, aesthetically speaking, a success - all black, relatively thin, perceived quality is good. But after the discovery there is the installation and use. From most to least important: - Significant loss of sensitivity to touch level, on the outskirts of the screen - this is the major negative - "Points" of contact between the two glass plates (one of the shell and that which covers the screen of the iPhone 5s) that appear from time to time, that of "tasks might be called "- this is reminiscent of what is observed when laying plastic film protection screens, except that in this case it appears from time to time and this is after installation ... - The build quality is not up to the appreciations and price (76) - The installation instructions, and this is a necessary thing, is not very explicit Too bad!