Konig & Meyer 14061 Leather Pneumatic Stool (Black)
My only caveat is that the footrest is not as easily adjustable as the seat angle and overall height.
You have to carry the included tool to adjust the footrest. Could there not be the same kind of system as adjusting a cane height?
Other than that, I’ve been enjoying using this for conducting choir rehearsals and teaching voice lessons from the piano.
Customer service was helpful along the way, too 👍🏻