Sorry to not have used it more than one workout at this point, but not much reviews are out there so I thought I'd add my 2 cents. Some of the exercises use the balance board, and others you just hold the wii remote. I trained with the platform on beginner mode. If you're afraid to spend $40 bucks, you could rent it first to see if you like it. The rental fee would be all you would lose if you don't like it.
Graphics were not impressive, but were sufficient. I have a feeling true gamers will not be impressed by graphics.