There are advantages to standing instead of siting, but since you cant do that ALL the time in order to enable it you need motorized table legs. Or at least thats how I did it.

I just put a small table on top of a bigger table. Switch the place of the keyboard/laptop/book. It seems to me that if you stand enough the expected utility of a super chair is pretty low, maybe even negative if it makes you sit more. I still dream about getting one to be honest though.