I am writing the review with this specific keyboard.
Two years later, the usage I have given it is not significant.
The reason is simple: It misses letters. The switch between Greek and English doesn't always work.
It requires pressure to type. It is also noisy.
It's a waste of effort, it's a shame, you can get a better quality one for 10 euros.
Update 16-8-2022
Yes, THE KEYS DO NOT WORK.
Yes, it misses letters.
I don't understand the reason for the dislikes.
It is the presentation of an experience in order to save people from falling into the mistake of buying a cheaper product.
P.S: Even to finish this comment, I pressed many backspace keys to correct the keyboard...
That's it for the dislikers.