Very good simple set for everyday use, I have already bought for two computers and will buy a third. The batteries last very long, I have not measured it but with daily use at work, I think I change about once a year. Just what is needed for those who do not want many frills from their peripherals.

It presents delays during typing.
1) Sometimes a character is repeated as if you were holding down the key even though you are not.
2) The mouse presents some delays but rarely.

I bought the set for 39.90 euros "Black Friday" for the office, so I don't use the shared ones at work. The keyboard is good, the keys have a good feel, they feel a bit "hard" when pressed but I believe they will soften with use. It has several useful shortcuts and multimedia buttons.
The mouse is unacceptable, a cheap thing.
I don't have a picture yet for battery autonomy.

I bought it because I write a lot in Word and I wanted a keyboard that offers something more for this job. The truth is that I am satisfied. It has good construction, a good feel when pressing the keys (not perfect), it is quiet (not completely), it has some useful shortcuts, and it connected easily to the PC with a tiny USB. All good. It does all the basic work very well. As for durability, I cannot say because it is a recent purchase. I just can't justify its high price. With a cheaper price of €53.00, it is somewhat expensive for what it offers. It is plastic, it does not have any ergonomic design, exotic material, special design, or unique feature that makes it stand out. Maybe if I didn't buy it online and saw it in a store, I wouldn't have given it a second look. The conclusion is: if you buy it for office use, it will satisfy you, but at this price, it is not exactly a bargain.

I change various keyboard brands from time to time, Logitech is one step ahead of the others in terms of overall quality, after sales, usability, durability, highly recommended

Adequate set. Initially, I plugged the USB into the back ports of the tower. Because the router and UPS were nearby, I had problems with electromagnetic interference and had no immediate response from the mouse and keyboard. As soon as I moved the USB away from them by connecting it through a cable and placing it next to the monitor, everything worked perfectly and reliably.
Good construction, slightly bulky keyboard, sturdy with bright indicators for caps lock and battery, useful short keys.
Update: The mouse has lost its reliability in general, it does whatever it wants, it is not controllable, and I now only use the keyboard and have added another mouse...