I have it
I really like it as there is no way i would be confident enough to go to classes, maybe once I have mastered the steps a bit I'd consider it!!
BUT being totally honest I haven't used mine much AT ALL !!! Like most Wii purchase's I get them thinking yes I will do it this time, i'll def stick to it & get into a routine but I just don't
I bet i've not done more than 4 goes on it
But what i did you could definatly feel it!!