I found the creator on reddit a year or so back where he showed it off. I want to support small guys so I took a chance that it wasn't a scam, and it came and works.

I find that it forces standing perfectly straight and still, while I like to wobble when standing so I never use it long.

I never tried sitting with it, the FAQ says you can. YMMV.

Learning doesn't take long, just plug it in, stand on it an watch your mouse move.