I have a screw that after more than an hour and a blister does not stay in the slot. Will ask for manufacturer to replace screw. You can assemble it if you are not short have a week upper body or have carple-tunnel syndrome. Once mostly assemble it appears to be okay but I will not be tossing out my 30 year old original chair.
Definitely not the best chair out there but it fits my need. No headrest for the price. It is comfortable though it does not extend backward enough. It is sturdy so far. Hope this lasts for years to come.