The lumbar support that I thought was the best feature of this chair is too high for me. I measured the length of the back part of the chair and it's 1/2 inch longer than the one my neighbor has. So I have to use a seat cushion. Other than that the chair is fine.
I have purchased used big name chairs in the past and they cost much more than this brand new one whose comfort and quality is similar plus I didn’t have to drive to the used office furniture warehouse to accept their least beat up item.
Less than a week of use: Purchased on a Friday. Assembled on Saturday. Observations on Wednesday: Pros: Easy to assemble. Fits my needs for ergonomics. Cons: The seat is already fraying at the edges. The wheels don’t spin well.
Comfortable and easy to assemble. However the chair felt small even though I'm 5'3". I wish the seat were deeper and the head rest taller. I regret not getting the bigger chair.