Thomann PS-37RM

Well pretty cheap but the screw under the "sit" is thiner than the hole in the feet, and the holding srew doesn't help as it does not hold in the same place.
the "sit" is pretty hard to sit on, OK for 20 min but my behind starts to feel it after.

I wouldnt recommend it exept if you can fix the stability issue yourself (It helped wraping the screw with some tape, but only for some weeks)