According to a recent study, Wii Fit is only a "mild workout," at best. I must admit that after using the game for over a year, I agree. It's not a great workout. However, there is one huge benefit: I continue to use it everyday.I've skipped the exercise altogether at this point, but still use its data-recording functionality to keep track of my weight and BMI. Checking in every day has the same effect as counting calories: you get some real data to back that decision to skip eating chocolate cake or to remind you of the impact that extra slice of pizza can have. While Wii Fit is not a great exercise, I can wholeheartedly recommend EA Sports Active. The game provides a much more intense workout. It doesn't rely on the Balance Board as much and instead uses the combination of the Wiimote and Nunchuck to get you moving. It also comes with a resistance band to make those curls and pulls that much more intense (although I would recommend replacing the included resistance band with something a little stronger). I started using Wii Fit in June of '08. Since that time, I've lost about 35 pounds, mainly from using Active. While Wii Fit and EA Sports Active may not compete with a real workout, the data-tracking and ease-of-use means that I use it almost daily. Not bad for a video game.