These stools are really comfortable.  I was concerned that the seat might be too small because of the raised lip on the back but they are perfect - even for my not so little backside.  Easy to put together once I got the hang of it and you really need 2 people.
PS:  After a few months usage, the stretcher bars keep coming apart.  It looks like on a couple of the stools that the threads that you 'twist' the stretcher bars into are not tight enough or are 'stripped'.  Mostly just a nuisance - will probably have to find a way to glue them in permanently.
After a years worth of daily use, the stools have held up well, although the stretcher bar problem still causes trouble.  Also, the seats do tip you forward to some degree which is a real problem if you are very short as I found out from visitors.