Positives:
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1) It has the familiar feet underneath to adjust the tilt slightly, if desired.
2) It is quite beautiful, even if the sides of the buttons appear to be accidentally sprayed with black paint (probably because they are...).
3) The manufacturer company responds to emails, although with some delay.
4) The shortcut keys (for computer, volume, etc.) work fine and you have the full range of keys in a familiar layout that doesn't feel unfamiliar. Also, I was positively impressed that it has a shortcut for locking the keyboard, which is a very useful function for various situations (protecting the PC from children, protecting during keyboard cleaning, etc.).
5) The backlight has 3 intensity levels.
6) It has screws underneath that, if unscrewed, I imagine would allow the keyboard to open. So, if something happens, you have hope of being able to fix it, and it doesn't just go to waste. Of course, I don't know how easily it opens yet, and I hope I don't have to find out.

Negatives:
________
1) It doesn't have Greek characters on the keys.
2) The backlight is only blue. It doesn't have other colors. At night, it will give incorrect information to your biological clock, to the extent that you might start staying awake for 24 hours. I would like a red backlight or at least white (which is equally beautiful).
3) Several times it seems to lose the brightness setting of the backlight. I'm not sure if it only happens when I unplug it from the USB port or at other times as well. But it's quite annoying. The built-in keyboard on the laptop always remembers this.
4) The backlight power on/off button is very easy to accidentally press, with all the consequences that entails. I don't know if there is any way to modify this button with software.
5) Unfortunately, there is no button for opening the context menu. Of course, you can press Shift+F10 instead, but it's not the same...
6) Overall, I wasn't very impressed with the typing experience because I don't type very fast with it, compared to the laptop keyboard, but maybe I'll get used to it. We'll see. However, I feel the keys "stick" slightly when pressed and don't go down very smoothly, and that's not pleasant as a first impression... I hope it doesn't get worse over time.

Also, if the travel distance of the keys was shorter (e.g. if the keys were a few millimeters above the keyboard level, like in most laptops), I think it would be much better. As long as you don't have trouble finding the keys. Personally, I never had such issues with laptops.

Overall, I have used a similarly priced Microsoft keyboard in the recent past, and I can say that the experience is not very different in terms of typing (as far as I remember at least). It might even be the same. But I will see how it goes over time and maybe come back to it.

Really unbelievable with 20 euros such a beautiful keyboard with illuminated keys with a USB port is really what I wanted cheap and beautiful. I recommend it to those who need something similar!