This is really a big item, and the box with the chair when I received it may weigh more than 100 pounds. It looks sturdy and I hope it can be used for a long time.
The instructions did not help me too much, and I assembled it exactly according to my own ideas. Another thing that makes me unhappy is that there are cracks in the plastic on the side of the chair, but it does not affect the use, and I did not replace it with a new one.
The height, rotation and tilting functions of the chair are all what I want, and I am generally satisfied with this chair.