While these chairs are absolutely beautiful to look at, they are not well built or designed. 
The legs splay out when my husband sat on them (he is 175 lbs). We tried to tighten the screws as much as humanly possible, but the legs still splayed and wobbled slightly. Our floor is hardwood. If you put the chair over a rug, there is enough friction to prevent it from splaying but I don’t want to buy a large rug just for that reason.
Also it’s back heavy. During dinner, my husband got out of the chair by slightly scooting it back from the table and it fell over backward! I had never seen that happen to any of our previous chairs..even the cheap ones. At 140 per chair, I absolutely expected better. Really disappointed, plus now that it’s all put together..it’s really not worth the effort to return.