i used to use mine all the time, it is really good, but got out of the habit when i went up to 5 days working from 3 days - new years resolution is to get back on it.
when i trapped a nerve (sciatic) and was in agony, i did the yoga and muscle exercises and over a few weeks went from screaming in agony when i put my foot down to being able to hop and skip again (yes i do have kids!)
when the girls play tennis - they sweat , but i am the hula hoop queen!
i have to say we love it - and have seriously considered buying one for my 80 year old dad to keep him fit!
regards
ela
ps at my best my wii fit age was 23 years younger than my actual age!!!!!!