Needed a extra bench for my back-up organ. This seemed fine at first, fairly well cushioned, stable, and doesn't topple, if I sit my 90 kg. at one end of it. But I was foolish enough to store it in a basement that was a bit damp for a while. First, the seat bent, then it broke, so humidity is a no-no.
Bought a second one, thought I'd just have to be careful about storage. But the fittings under the seat, supposed to curve about 180 degrees, straightened to about 90 degrees. And no, i have not gaineds weight.
... and with no additional load, the new stool threw me to the floor (again), because the fittings simply bent. Fortunately, not at a gig. NOT RECOMMENDED