Exactly as promised by the manufacturer, high quality.
I use it for several days, while the flight is normal, everything is fine, the backlight is fire, everything is fine with the software. At the first connection, the software immediately downloaded itself and can be installed, not buggy.
Pros
Backlight, soft, backlight modes, quiet.
Cons
For me, not yet, I took it for 2.5k with points, so you can take it here for a promotion for 4k, so for such a price everything is excellent all the more. They talk about erasing keys, paints from them, I use them a little - not yet, if I add something.