It works very well! One of my sisters got one, then another sister tried it and got her own. She has had Multiple Schlerosis for about 20 years and is degrading all the time. The Wii Fit has helped her to regain much of her balance and strength. My dad (74 years, post bypass surgery, lung cancer, etc.) tried it and started improving immediately. My siblings and I went in and got one for him and my mother. They’ve been using it for a few weeks and are doing great. I want to get my own to aid in my home yoga practice.