It took me 5 hours to assemble this chair - was not easy when you have to do it by yourself. There are two screws which gave me a lot of trouble - Step # 6 - one screw on each side to hold the plastic cover. The srews are short and when you put the cover over the area where it's supposed to go, you cannot see the hole where the screw needs to be put in. I feel that the two screws should be "longer" OR perhaps the covers should be better designed. Well, both covers are still not on although I have assembled the entire chair and am using it. Chair is comfortable and looks good. Decent lumbar neck support.