These stools are very sturdy, well made, and comfortable!  Love them!  They have a 360 degree swivel, not a tight partial swivel, like many others I had seen and the foot rest is at the perfect height, significantly adding to the comfort.  The seats are firm, but not hard, and the black polyurethane upholstery looks great and cleans easily - not at all cheap looking.  As noted by other reviewers, there is a slight difference in the overall height of the stools, but it’s not really noticeable unless you’re looking closely.  These stools are pretty wide, so measure carefully before ordering.  My counter-height island is just over 10 feet long and would normally be able to comfortably fit 5, but in order to prevent crowding, 4 of these stools fit perfectly.