From the description, I had high hopes for this game -- They did get the music right and the story mode is full of good information including mention of chakras. However, the graphics are terrible and you can't really explore on your own -- you have to just follow the guide around. I couldn't even figure out how to interact with anything.
The real problem, though, is when you actually go to do a pose. The balance board and remote are only used to check your form if you are in story or training mode. Then it really only seems to check to make sure your hand is steady and your weight is evenly distributed. The game doesn't give you feedback.
The routine section is even more disappointing. The routines are supposed to help you with different things, but they're more like random grab bags of unrelated poses with no warm up and barely any instruction. And, the instructor is a pixelated blob whose head you can barely make out let alone a complicated yoga pose.