I got this chair because it promised to be suitable for many hours of sitting at your desk and it absolutely lives up to the promise. I also like that it is ventilated throughout. Mine was a floor model so I can't say anything about the ease of assembly.
Nice chair.... Went together without much of a problem. However when I got to the last piece the Head Rest it was broken. I called the store and the manager was very helpful...he took a headrest from another box and it was available to me for pickup later that day for a clean swap.
Went into the store to make sure I would feel comfortable in this chair seemed like I would. Had it delivered to my office. I have the chair for 2 weeks now and I really like it. Sturdy and has some lumbar support ... so far so good!