I'm less thrilled with my Wii Fit than I expected to be. Skip this post if you don't want to read anything bad about it.
Things I'm not loving:
You have to pick each exercise one-by-one, with lots of button-mashing on the remote in between. The game has no option to build a whole workout routine. My previous experience with this kind of console game was Yourself!Fitness, which would let you choose the amount of time you wanted to exercise, the equipment you had, and then it would build a whole workout for you.
Wii Fit, by contrast, seems to be based on WiiSports, which means that you *have* to hit the "A" button to advance the game about every 2-3 minutes, even if just to do the same exercise a second time. So the remote has to be in-hand or close by at all times, and you have to stop and pick your next exercise every single time--but first you must wait for the game to show you your WiiSports-style rank, and then to play the piggy-bank animation (how much time you've spent in the game). Which all adds up to not feeling like you're really doing a workout routine.
The game constantly harrangues me about my balance, which, fair enough, my balance sucks...but it feels like an ongoing advertisement for how awesome their balance board peripheral is.
And speaking of that, I'm not sure how sensitive the thing actually is as a scale--my digital scale registered about a 1lb loss today, WiiFit tells me I weigh *exactly* the same as yesterday, which seems unlikely given normal variations. I suppose my digital scale could be to blame.
Overall, I actually have found Yourself!Fitness to be significantly more robust in terms of tailoring/developing an exercise program for an individual without making them have to click through a million menus. I'll keep trying out WiiFit, especially since my balance *is* abysmal, but my hope is that some other developer will eventually come out with a fitness title that uses the board peripheral and is not based on the WiiSports format.