The mounting screws did not go all the way in from the base to the chair and got stuck. They could be turned in place smoothly so it wasn't an issue of misalignment of the threads but we could not take them out and had to bring the partially assembled chair and box back for a return.
This office chair replaced a similar one which I purchased 7 years ago. The chair is nice and appearance comfortable and great value for its price. Since it's made of a man-made material rather than leather I won't expect it to last much longer than my last chair but I also wasn't willing to put in $500 for a leather chair. I would recommend it if you want an inexpensive chair.
I finally was able to have someone assist me with the assembly of my chair. I had no idea I had to assemble. But it is a very comfortable chair and glad I made the purchase.