The device has fortunately very quiet drive noise (I had initially ordered me a player of Panasonic and had him because of the loud drive noise when playing back end ...). Operation, menus etc. I find very intuitive. 4K upscaling is great. As the only negative point I can also mention the tiny remote control. The size is not even the problem, but the arrangement of the keys is not exactly optimal. It is very difficult to find in the dark right away the right buttons, z..B. for pause / play. In other remotes that is intuitive to use and you can haptic there better geared than in the small Sony remote control.
