Quite good, I'm talking about using it on a Mac in combination with the MX Master 3 mouse. Durable, high-quality construction, intense lighting with the significant ability to only turn on the lights when you go to type, for energy saving. Now for the negatives: I have the brown switches that are considered silent but with noticeable feedback. Well, to tell the truth, I don't think these switches are silent, I have changed dozens of mechanical keyboards and I imagine that the small travel distance of the switch in combination with the fact that it "hits" on the aluminum chassis plays a role. Additionally, from intense use, the switches have "softened," for example, the feeling of the click on the letters is gentler compared to the F-keys. Perhaps the most significant negative aspect of this keyboard is that it is "tiring." I write complete texts on it for an everyday 8-hour and more basis, and it significantly strains the upper part of the wrist, so much so that many times I leave it and work with an Apple Magic Keyboard touch. What can I say, maybe it didn't suit my hands (?!)... In contrast, with a Keychron that I also have, I can say that it is definitely more comfortable, as it is considered low profile and has short-low type keycaps, but it still tires. The reason why I don't fully replace it with the Magic Keyboard is the Logitech ecosystem, as I have combined it, as I said, with the corresponding mouse, creating automations, hotkeys, app-oriented settings, and many more. Logitech has a great advantage in this, it works very well and truly increases productivity. Finally, the battery life is very satisfactory. It lasts for about 3 weeks, something that depends about 90% on the brightness setting (how often it will turn on, how intense, and in which mode). In general, I recommend it, but I would say for someone who writes an occasional message, does browsing, general use, and even a little bit of coding. If it is intended for typing complete texts, emails, and many lines/pages of text, then do some research first to be sure.

Edit 10-05-2025.
Unfortunately, I have to reconsider. I am not changing my rating because, on the one hand, as long as it worked, things were fine, but after office use, a key broke at its base for no reason. Logitech informed me that there is no spare part... For such an expensive product, and buying replacement keys from eBay comes at an outrageous cost. Besides, I received this message, which I also considered to be in the wrong direction, as if I was looking for a discount to spend another €140 in three years.

"I would like to inform you that for the MX mechanical mini keyboard we will not manufacture any spare keycaps.

If the keycaps is popped out then, we will look into the warranty of the keyboard and if the product is under warranty we will replace the product. I have looked into your product warranty, but I am sorry as the product was purchased in 2022, this product MX mechanical mini has only 2 years of hardware limited warranty. We will not be able to proceed with the warranty claim.

As a valued customer, I want to make sure you leave with something special! I'm excited to offer you a fantastic 20% discount on all Logitech products available on our official site. How does that sound? Would you like to take advantage of this offer?"

Another reason I am not changing my rating is that I don't want anyone to think that I believe they will have the same experience, although with the information I have, I am discouraged from trusting them again.

However, this is the whole story so everyone can judge better.
Below is my original older text.

Five stars because I found a keyboard where the clicky switches have the right sound and help you keep a good rhythm when typing without making a racket. Pleasant without excessive noise. The negatives: the buttons, their plastic, feel cheap, which I think I can even sense when pressing the button. Yes, and I would say someone should try it first because at the same time you get the feeling that typing is lighter. Really strange and I still haven't decided if it's for better or worse that the keys feel very light—a construction with thin plastic. I also saw some comments online that the keys are not easily replaceable, because the SpaceBar base has a special construction. Acceptable up to here.
What is not acceptable, but I at least have gotten used to it with a heavy heart, is that the lighting turns off automatically without you being able to set the limit. You have to pass your hands over it or put them on the keys for the lighting to come back on, but it doesn't happen instantly and in the end, this is annoying. Otherwise, the connection with multiple devices, key programming, battery, desk space saving, the beauty of the keyboard, and productivity along with an MX mouse are truly amazing. I hope in an update they at least fix the lighting issue, unless I'm wrong and there is a way, but I haven't found it so far. In conclusion, is it perfect? No. Can it become perfect? For the reasons I wrote above, for me, if it had lighting adjustment, yes, it would be.