We purchased four stools for our new kitchen counter.  They look great and we love the fact that they are adjustable .  We were given wooden stools with high backs on them, but they did not work out because they damaged the black walnut trim around the counter top and were not comfortable to sit on for long periods of time.  The low backrest is comfortable and gives just the right lower back support.  I would recommend these stools for anyone.  

Pros: Adjustable height for use at a table or bar counter, easy to clean, light weight to move when cleaning, and sturdy to be used by either children or adults 
Cons: none.