I think its really good but I am not very good at being consistent, I play with it more than I do it as exercise really but you can do jogging and proper exercise, most things are more fun and toning. Not sure if I would say you would loose weight with it unless you jog constantly. Kids will love it though with the hula hoops and trying to catch fish by leaning back and forwards etc... its fun, not sure if its a real gym substitute