I had the chair only 6 months before it stopped going to its full height, and another month later it was so low that the rod in the middle was dragging on the floor. The plastic base holding yhe wheels cracked the second I tried to slide it back into place (note it was stuck and would not slide). I am less than 300lbs. This is highly disappointing. Additionally, it's not the most comfortable, I was in the midst of shopping for a good seat cushion.