Ok...I don't know how great it is as a program but I can say this: Its very soothing to wake up with and drink sips of coffee to. The voice is soft and not annoying and it has pretty backgrounds.
I still have a bollywood workout yet to try and want the ultimate fighter program they are going to release:
UFC Personal Trainer | The Ultimate Fitness System - Xbox.com
Any other ones that are fun or great to workout to?