For its price, it is good.
Just one issue that will frustrate you is that the connection is lost all the time and nothing works.
Especially the mouse.
It happened so often that the keyboard ended up being in two different pieces and I calmed down

The product is worth its money but.
If you are looking for a cheap gaming set that also looks fancy, like I was looking for, it's better not to get it. Get a good keyboard-mouse set because these are made of plastic and look cheap. They are very lightweight and the keyboard, which is classic and not mechanical, makes noise.
In general, look for something better and more expensive because yes, the price is good, it gives you 4 things for 30€, but in the end, it would have been better for me to spend 40-50€ on a keyboard-mouse, 30€ on headphones, and 5€ on a mousepad, I would enjoy my gaming setup more.

Now, for regular use, they do their job normally, no doubt, no problem, everything is fine. Just cheap plastic.
The headphones are the only thing that doesn't scream that they are cheap

It is considered a very good price for value for money, but it is mostly considered "mechanical" for the keyboard and it is not at all membrane. It is also considered of very poor quality if it is mechanical, with the others I am and I am not satisfied

For its price, the set is unbeatable in terms of value for money. The headphones are extremely lightweight and the sound is satisfactory. The keyboard is light and the keys have a good feel, just like the mouse, and they all have LED color. Only time will tell, I will only come back if anything happens to the set.