The chair itself looks quite OK, I'm surprised by the processing. That is, for such a low chair from China, acceptable.
All seams are worked clean and free of errors, the seat and the backrest are quite large and soft, the retractable armrests are softly padded, to my mind, the backrests are somewhat too high, I sit more comfortable if I do not use the backrest. The rest are made of plastic.
The holes in the backs of the screw can be sealed with round cover plate, but you must not expect any smooth surfaces afterwards, that would drive the price up.
The artificial leather feels good and looks good.
The seat is height adjustable and can be tilted also. How far let go the inclination can be adjusted at the bottom of the seats.
The star base is large and very stable. It is equipped with non-slip foot shelves. The rollers have integrated brake, which means that they are only under load, ie when someone is sitting on the chair, roll, with no load they almost did not roll.
Conclusion: This chair is recommended for this very reasonable price.