Quality is good for the price.  They roll beautifully on my uneven tile floor with little noise and, because they are armless, they tuck neatly under my desk and sewing table respectively.  The cheerful orange color brightens up the room and reflects a lovely orange glow at certain times of the day.  I put two of them together in less than 20 minutes following the easy instructions. They are small which I wanted and I'm comfortable sitting on them for long periods of time but there is little back support. I'm a 62 year old grandma, 30 pounds overweight. 

Pros: Great value, easy assembly, no arms so they take up little space when not in use.
Cons: None that I have discovered.