To begin with, the keyboard is inexpensive, among optical RSL keyboards. because this is a mechanic, then working in the same room with a sleeping person will not work) It’s nice to work on it. The ergonomics are classic, which is a big plus for me (5/5), nothing more, but everything you need is there. The backlighting is quite uniform, however, a little space under the key (4/5) glows. There are not many hardware backlight modes, but you can set any programmatically, you can set 10 active modes (keys from 0 to 9). For me personally, it was important to be able to create profiles for games (leave active keys backlit). The settings are saved. Only the font was disappointing, there are those who type blindly, but they don’t need backlighting then)) there are interchangeable keys (gaming). Let's see the quality, but so far the impressions are very good! I recommend