WOW! This chair is more amazing than I thought. I have a lower lumbar back injury and it is painful to sit on anything too solid. This chair is amazing. It is very lightweight. Very easy to put together. And you practically slowly sink into it as you sit down. It is like a down pillow. But even  better for me, because the seat doesnt have any direct support or an actual base, its like your sitting on air and cushion like a thick hammock, which is perfect for my lower back. When I rise from it I feel no pain. I use it for my computer desk. Its amazing. I have no complaints.