I have observed my husband's usage of office chairs, and they don't last long enough for him. He likes to 'recline' in them, which strains the structure to the point that it doesn't take long for them to give out under the stress. We've gone through at least 3 high-back office chairs in the 9 years we've been married. I've been observing his usage... and needed a chair that would recline, had a footrest, and was for big and tall men, his being 300 pounds. We found it in this chair. He was able to assemble it with very little trouble, other than he said that he wished the instructions to assemble were a little more clear, but everything lined up, the wheel base is heavy steel, the adjustment mechanisms are solid, they line up with the holes for the screws, with little effort to have to fight to get them to line up. He's been using it for several hours now, and he keeps repeating 'I LOVE this chair!' Very comfortable for his frame, and good support in all the right places. That's what I wanted to hear.