Easy to assemble!  One Allen wrench and clearly labeled instructions  30-45 minutes later I had these great stools set up.  I ordered the counter height (mine is 33” tall) so these fit underneath perfectly.  The fabric does have some dark blue variations but for the most part pull dark grey.  They’re comfortable, swivel smoothly and I really like the bent wood arm rests—gives it a unique look.  Would purchase again!