Logitech MX Keys quality and aesthetics at 1/3 of the price.

Minimalist design, low profile, wireless with endless hours of operation, connects to Mac and Windows via Bluetooth + 2.4 GHz. Quiet keyboard and mouse, with 2 programmable buttons on the side and adjustable DPI via an extra button on the top. The packaging is well thought out, with foam padding, a Type-C cable, and a Type-C to Type-A adapter.

The only downsides I’d mention are the lack of backlighting on the keyboard, as well as the mouse’s performance on surfaces other than a mouse pad (its sensor struggles on surfaces that aren’t very smooth).

At this price, though, it’s a clear 5/5.
It has been used at an office computer for many hours every day; the battery lasts for many weeks and charges in less than 2 hours. It offers a very comfortable typing experience.
If you buy cheap wireless sets for €15–25 every year, it’s worth upgrading to this one, and you’ll definitely have one less thing to worry about for quite a few years.

22 days of use:
build quality: average, the body is metallic, the keys are plastic with a "cheap" feel. Their click is moderately soft, the size helps with fast typing.
The mouse is of good quality, with good response and smooth scrolling, and it is silent when clicking.
Every time, I put the keyboard and mouse back in their packaging with the cover until I use them again; this is my approach to using what I buy.

Used with RF 2.4G, immediately recognized by Windows 10 and 11.
Because I had a large volume of handwritten notes to type into Word, I decided to choose this model, based on the reviews I saw in videos on Skroutz and YouTube. I always have reservations when I see people just saying "fantastic, nice, beautiful" just by caressing it, but I went ahead with the purchase anyway.
My mistake. Anyone who sees my reviews knows they have months of depth.
When I started typing fast, the keyboard would freeze and send characters non-stop.
I reset it, changed USB ports 2.0, 3.0, 3.1, without any change in result. My computer is from 2024, always fully updated with the manufacturer's drivers.
I took it with me to the company where I work (IT support in one of the largest businesses in our country) and first gave it to a colleague to test on his PC, so I wouldn't be biased. It didn't show any problems for simple occasional use. When I tried typing fast, it showed the same problem, which would stop when you turned the keyboard off/on from the switch. I also tried it on a third computer, and the problem appeared when I started typing continuously.
After being patient for 5 days, I decided to request a return, asking for my money back. I even recorded videos proving the problem.
However, I decided to switch it to Bluetooth mode.
It didn't show stuck characters again, but it did show random and momentary delays (lags). Being patient, I let the return request be canceled, losing the chance for a refund, thinking Bluetooth was the solution, until a couple of days ago it started sending continuous characters again when I turned on the switch.
The mouse ran out of battery after 22 days. The good thing is that I had a 1.5-meter type C cable and, connecting it while off, I could use it while charging.
22 days of autonomy, less than a single alkaline AA battery that most mice use, is unacceptable. Because I DON'T play games and DON'T use design programs, so its use is the minimal clicks needed for navigation and OS handling.

Also, unlike other Bluetooth keyboards I've used, it doesn't wake the computer from sleep. In RF mode, it can't access the BIOS (at work, with RF Dell, it's possible).

Its value should have been around 20-25 euros. But a "marketing" buzz was created by "testers" of free samples, and it gained a reputation that "Keychrons are good" and that "they are for professional use."