I've seen folks using this style stool and have thought about getting one. How is the comfort level compared to the standard 3 legged stool with a fabric seat? I'd imagine its a bit less comfortable but still reasonable for short periods of time? It's not like one will be sitting 12 hours in it...
I have said it before: this type of seat is good and even decently comfortable if you sit straight down on it (and move straight up) and do not wiggle at all, but I found that while photographing I unconsciously (or consciously) do move my butt a bit back and forth and that is NOT something a rigid plastic collapsable stool will tolerate well. The seat of this type I took to Nome ended up breaking. I was able to fix it when I got home, but for photography I now would only ever use a cloth-covered type stool (like a Walkstool).