Wii Fit?

has anyone used a Wii Fit either before or after surgery? im pre op (still waiting for my surgeon appointment to set a date, then crossing my fingers im approved) i know i have to set an exercise regimen in and stick to it and with my crazy schedule and the freezing weather im afraid ill come up with every excuse not to join a gym or even go outside and walk. so ive decided to get a wii fit, i have heard amazing things about it, but for that money i know i have to work my butt off and make sure its right for me. anyone have any experience with one?

 I've  had my Wii Fit since June.  I do like it and use it regularly...it has lots of nice yoga exercises and other strength/cardio workouts.    However, for me it's not enough of a workout.  I have to go to the rec center and either do a cardio class or machine for me to feel like I've gotten a good workout.I like to use Wii Fit on my off days that I don't go to the gym.  To me Wii Fit isn't much of a challenge, but it might be perfect for someone else.  

~Emily~