Purchased these last year. One year and one month later the first one has broken. No mistreatment, no "event". Just sitting in it and one of the structural pieces of wood underneath just broke. No unusual weight load (the heaviest person in the house is 220 lb and normal everyday use is by people 60-120 lbs lighter than that); also no sudden/unusual movement, etc. It is presumed there must have been a fracture in the wood from the beginning. It's unfortunate timing, wish it had happened a month earlier if at all as it is now out of warranty. 

I will say that they are very attractive and in the past year we've received lots of compliments on how nice they look but I don't really trust them for my guests anymore.