Very easy to assemble.  Took about 5 min per stool...I had a drill with a hex bit.  Their tool could make assembly challenging.  Aesthetically, very pleasing...exactly what I was looking for.  On a cautionary note, use this stool very carefully.  There is a design flaw which can make a part of the stool fall apart.  A screw in each bottom support bar would solve the problem.  Won't collapse but does need to be watched and put back in place.  Not sure these would be good for a large, heavy person.  But, as I said perfect for my needs and my kids so I am very happy with this product.