These are great looking.  Swivel is quiet and perfect. But...
1) we ordered 4, 3 of them were 24.5 and 1 was 24.25. If you look carefully the difference is noticeable.  
2) one chair is wobbly as one of the legs is shorter than the other three.
3) assembly is a little annoying since there is limited area to move around with an L key. So a simple assembly takes some time (30 min per chair). If you are handy with tools, You can find a way to speed that up.

These were some minor issues that we will have to fix on our own but besides the chairs are amazing looking.