My wife and I are sorry that we wasted our money.  The first shipment of chairs we received had a few with split wood.  Wayfair was good about sending us replacements, but the new chairs were not much better.  Poor quality manufactured wood (still some splitting), poor quality upholstery around the seat, and leg lengths vary widely.  It appears that some chairs were made by a different manufacturer or at a different factory with different hardware.  It is now impossible to find replacement levelers online for four of the chairs.