Pros below: Materials and build quality, laconic design and compactness, stability on the table, pleasant weight, excellent work via Bluetooth, nice software and the ability to configure function keys, USB Type-C charging (a trifle, but it's nice when all devices on the desktop are powered by one cable - phone, power bank, headphones, now also a keyboard). Its cons: 1. For absolutely incomprehensible reasons, the left Shift is reduced to an unbearably small size. This was done in order to place on its area one more button with symbols that are duplicated on the keyboard. This is absolutely not justified, not ergonomic solution. The left font is used when printing and working with the same Excel all the time. Out of habit, you miss and click on the symbols . At the same time, this brilliant idea is implemented only in the Russified version of the device. If you look at the non-Cyrillic version, it's made with two full-sized Shifts on the left and right. For understanding - even the Start and Fn buttons are larger than the left Shift. What is more commonly used? The answer, I think, is obvious. This is a huge minus that spoils the whole impression of the ergonomics of the device. 2. Keyboard backlight only responds to movement; when the hands hover statically over it, after a few seconds the backlight disappears. Thus, if you are motionless waiting for the completion of a task on the computer, or just thinking while typing, you will have to move your hands to activate the dimmed backlight. Logitech, if you're reading this, I'm sure this can be fixed in the next ate. Please add the ability to turn on the backlight permanently, and not in response to movement.