Have been using for less than 2 months for around 10 hrs/day. I weigh 175 lbs and the padding in the armrests has completely collapsed so forearms now rest on metal. Also the seat mechanism now groans whenever I shift in the chair. Would not recommend this product except as a decoration for your office. Note the 14 day return/exchange policy.
I went in to Staples to purchase a chair and I was given excellent service. They did not have the chair I wanted in the store but it was delivered right on time in a couple of days.