Starting from the unboxing, I can say that I was excited with the whole packaging. Everything was neat and properly packed, in a box with plenty of space inside and not cramped. Simple instructions, with the tool and screws included in the package. The screws were one of the many pleasant surprises as they seemed to be heavy duty.
In general, the overall quality of the chair, the backrest, and all the individual components is top-notch (certainly worth much more than 56 euros). Here, it should be noted that if you search, you will find exactly the same chair priced at 80 and 90 euros on other sites that supposedly specialize in office furniture.
The only negative is that the backrest does not have a mechanism to allow it to lock at a fixed recline position.
That is, it is either completely rigid and upright, or depending on the pressure you apply, you can lean back, but it returns as soon as you relax.
If you want a very comfortable backrest or a more... loose experience, don't buy it. Also, don't buy it if you often sit cross-legged. It won't suit you very well.
The mesh of the backrest is quite tight and firm, and the seat cushion is quite thick and comfortable.
A major advantage is the height-adjustable armrests.
It is recommended as a purchase for a maximum price of up to 65 euros.
If it ever goes above 70 euros, choose another chair.