I have 6 of these chairs and I love them. BUT, I sat down in one the other day and fell straight back onto the ground. The two back legs had snapped right where they were welded to the frame, photos attached. 

I reached out to customer support and was disappointed to learn they only acknowledge manufacturing issues if the damage happens within 30 days of your purchase. I had purchased these chairs 90 days ago. This is clearly a manufacturing issue and a huge safety hazard.