Pro: Chairs are attractive
Cons: Swivel mechanism is very stiff. You cannot rotate the seat 90 degrees, sit down and then rotate to the table top. The seat will rotate if you are sitting on it but it still takes some effort. These are certainly not like your favorite office chair.
Also, since, you now have to scoot the chair forward to the table top like a non swivel chair, I discovered a painful pinch point. If you reach under the chair between the seat bottom and top of the leg frame to pull the chair forward then sit down before removing your fingers, there is enough flex in the swivel mechanism to allow the seat to deflect down and trap your finger with painful results!