The keyboard, on the whole, is of acceptable quality, but. The layout is not standard, and it is really challenging to become accustomed to it. It is quite difficult to type when blind. Has pros: The pressing mechanism, the materials, the tactile sensations, and the construction quality. Below are some downsides: Could this be the reason that Logitech develops its own layout? After working on normal keyboards for twenty years, it is impossible to relearn new keyboard layouts. Blind typing does not work.