Very cheap and convenient stand! Best suited for lighter keyboards though really. Quick to set up and doesn't take much space at all.
I'm rehearsing and gigging with an old Hammond transistor organ that weighs 20+ kg, and it doesn't feel ideal to have that hunk of wood and steel gyrating on that aluminium stand. It doesn't feel like it would break, but I'd much rather use a four-legged stand for such a keyboard.