In my opinion, the keyboard has two drawbacks that negate its advantages:
1. The main one is practically a disposable keyboard. The keyboard uses a tablet battery - ML2032. When the battery fails the keyboard can only be used if there is a !good! and exactly! good! light source above it. The light from the window or the light of the lamp from the ceiling behind you will not work. You need to shine with a bright light, directly on the keyboard, and then it will continue to work until the light is turned off. The battery cannot be replaced, or rather impossible. It's not being sold. If the battery is dead, you can't buy a new one. And this situation ruins everything.
My battery died after 2 years of using the keyboard, and without a battery, the keyboard does not work at all. Having given about 3,000 for it, after 2 years I received a non-working piece of plastic. Everything would be fine if it were possible to replace the battery, but I repeat, they are not sold. As a result, instead of a battery, I put a CR2032 battery in it, which, according to Logitech, cannot be done. The keyboard came to life, now I write from it. Of course now it will not be able to charge the battery, but at least I can print from it without thinking about the lack of light. The battery costs from 150. When buying a keyboard, I was hoping to get an almost eternal keyboard, but in reality everything turned out differently. There can be nothing eternal if it is tied to consumables. As soon as consumables disappear, no matter how good a thing is, it becomes unnecessary. I don’t know how long the battery lasts, time will tell, but I won’t buy it a second time, because in the current situation it doesn’t justify the money invested in it, which is a pity.
2. The need for good lighting to charge the battery. In low light, the battery practically does not charge, and you may not know about it. And leaving the computer turned on for the night, you can find in the morning that the battery is set to zero and is no longer ready to be charged, since a deep discharge has occurred.