Very easy to assemble this chair and in doing so, you see first hand the quality.  In using it now, I love it.  I am able to adjust every important element that keeps me sitting comfortably and straight at my desk which I could not do before.  I have sciatica issues that manifest in my right leg.  Sitting on the edge of a previous chair only aggrvated this issue.  Now, my new ergonomic chair keeps me sitting properly and close tp my work surface.  I very much recommend this chair if you find yourelf growing stiff in you old chair or your legs are going to sleep due to bad desk chair posture.