I ordered the stool after looking at much more expensive saddle-seat stools.  I didn't really want a rolling stool, but for the price I'm not complaining.  It was easy to assemble, almost surprisingly so.

My only actual complaint is the foot ring.  If you're planning on using this stool at a high counter (I unfortunately am), you may find that the foot ring doesn't really hold position if you put much weight on it.  It's not a huge issue for me, but for someone with shorter legs it certainly could be.

I haven't used it for very long yet but it seems to be very comfortable.  With other stools, I've had a real tendency to slouch.  This stool seems to gently encourage better posture just because of the angle of your hips.