I noticed that my constant lower back pain would go away for a few days after I did back extensions at the gym. Since I can not get to the gym more than a few times a week, I get the same relief at home using this equipment. Very well made. Easy to use. Not unstable at all, even on a rug.
I really feel like I'm gonna get some good use out of this chair. I've only used it a few times now, but I like the ergonomics of it and it feels sturdy. ????