My wife and I treated ourselves last year. She stands all the time. I think I've stood once in the time I've owned it. That said, I still feel it was worth it. I'm 6-1 if that means anything and I do adjust the height often as my posture changes. I think it's helped with back pain quite a lot. One thing I didn't expect was how little it takes to be out of alignment. Like, sometimes a 1/2 inch adjustment takes me from ugh this isn't right to ahhh, perfect.
I'd buy one again if I had a do over.