I finally got my act together and checked out Wii Active today. I liked it. Its a little unfair to judge anything like this solely on the first day, but I'll share my $0.02 if anyone is interested...
First off, it is a way harder workout than the wii Fit, and I started on medium, not advanced, so it gets harder.
The resistance band is kind of a joke, but you could always get a stronger one and just use that.
Its REALLY nice to not have to stop and choose a new exercise every time, it automatically advances you through a whole workout not one exercise at a time like the Fit.I did seem to have some connection troubles. It kept telling me I was running too slow, regardless of my actual speed (I stopped completely, then ran as fast as I could and it didn't register any change in my pace).
I am not sure if I like the journal/record keeping side of the program. I think the Fit is superior here, and it actually weighed you, which I need.
Anyway, that's what I noticed on round 1. I started the 30-day workout today, so I'm sure I'll have more to say as that goes on. And, yes, I totally looked like this: