It depends on how you use it. The mini games were a fun distraction, however after setting all the high scores I never touched them anymore. Doing the exercises as shown won't get you very fit (it works just not very tacting). I add weight and or extra reps, going faster than the slow pace of the game, upto 110 for push up and side plank for example. It's a nice tool to keep track and have that little pause in between while selecting the next one. It's more of a motivation tool than proper 'workout instructor' And it's always fun when it accuses you of not making any effort when you're holding 20 pound weights instead of the wii motes.
I did, I'm elite on JD 2015 (ps4), won the may tournament. We have it on the Wii U as well. I had both running at the same time in online mode, switch back and forth to cut out the waiting part in between. The good thing about these games is that they get dirt cheap once the next version comes out. Buying up all the DDR games for ps2 didn't even get close to the price of 1 new game.
First of all, mad respect, man! As much as I try, I can't even get 5 stars on many songs.
Second, I had no idea the camera didn't track moves well. Since I already have a move controller, I'll use that from now on.