I have owned my Wii fit for around 6 months now and it is a great sourse of exacise.
It is used by me and my mother.
It has plenty of great exacises such as yoga, balence exacises and many others.
The Wii fit is so much fun and you get fit at the same time, What more do you want?!
I try to go on my Wii fit as often as possible to get fit. My mother uses it every evening to do her yoga exacise's which she absolutly enjoys, i can never get her off it!
I would recomend the Wii fit for anyone of any age, the kids will love it as it has fun games so they will be playing games on it and learning to keep fit at the same time, if you want to get fit for next summer (if we have one lol) i recomend you get this.

- sorry for any spelling mistakes.