This chair is awesome. No matter what others say about having issues putting it together I found that to be fairly easy. It might have taken 15 minutes tops to put all the bolts in and have it ready to use.  Just don't tighten all the bolts as if you do you won't be able to see the last holes in the chair back to line up the bolts with those holes to start screwing them in to make some adjustments with the alignment of the chair back. That was the only challenging part but I was able to put the chair together all by myself without any help at all.  All the threads were easy to start. bought chair for my wife who works in it for 8 hours a day.  She said it was comfortable. I use reviews to make my purchases so just thought I would share my thoughts. Shipping was fast, only a few days.