They look exactly as shown in the picture and are wonderful at our kitchen island counter.  Mine measure slightly different than the manufacturer notes.  Mine are 37.25" tall from top of the backrest to the floor.  The seat top is 25.25" off the floor.  The backrest extends 12.25" above the seat top.  This is the perfect size for the granite overhang on my kitchen island.  The top of my island overhang is 36" from the floor, the thickness of my granite is 1.25", resulting in the bottom of the granite slab being 34.75" off the floor.

They seem durable, but I've only had them for a few weeks now, so I can't speak to how they will last over time.  My guess is they will be fine.  They look very high quality.  The swivel is smooth.  I'd buy them again.

I did have a problem with one of the four that I received.  One of the holes was not drilled exactly right, making assembly of that particular stool impossible.  Wayfair responded quickly, sending me a new stool, which worked perfectly.