It serves the purpose I used it for like 10 hours a day and it is an ok chair. I usually sit on one leg folder which I can't do on this as I am afraid to break the mesh.
The chair was simple enough to put together. All the parts fit together nicely with the provided tools. I like how it reclines and feels when I am sitting in it. Its nice and breathable so I feel cool even when in the chair for hours. The wheels roll nicely with out much effort. There is plenty of elevation adjustment so thats no issue even for someone small like myself.
I have been using this chair for around 2 weeks and I think it is good if you are used to mesh chairs. My thighs and ass needed to adjust to the mesh but overall it is good. It gets hot over here and having the mesh chair definitely cooled my ass down. I think you need to be decently tall to use the head rest. I am 6'1'' and it seems good for my neck but if I was shorter it would not position well. I wish I could lower the arm rests some more so I can put my chair underneath my desk when I am not using it. Overall it is a good purchase.