The chair was very easy to put together and I am finding it to be better on my back than I chair I was using before. Works great with the desk I ordered previously. Would definitely recommend it to others.
The floor model I tried felt different from the chair I actually got. There were a couple of issues with putting it together: one hole that you screw into was stripped but it was one of three so we figured it would be ok. I noticed when I sat in it that one arm is a bit shorter than the other measured it and was shorter. After about an hour my back and shoulders start hurting a bit. Trying to decide about taking it apart and returning it...
This was the most comfortable chair I sat in at Staples. Easy to assemble. My wife and two sons liked it much they made more order these chairs for them too.
I had to get a new chair because I was unable to sit without pain due more than a few hours and very quickly this chair solved the problem. It is a bit bulkier than I wish but has a minimalist euro profile plus enough padding for an American body. The wheels are extremely smooth and gentle on flooring. The backrest adjustment is less dramatic than I'd want but like I said I'm no longer in pain from poor lumbar support.