It's not the same as Wii Fit, it's more grueling, demanding, and honestly not as fun. Jillian isn't known as a nice person, and at some points her evil voice comes to get ya (lol), but she's a good helper in the process of losing weight, so...
No actual consumerism, but people may buy the game because Jillian is on The Biggest Loser. I know that's why my mother bought it. Teaches you good excercises and gives wonderful tips on eating right and excersising daily. For some that don't think there is much of a difference between Wii Fit and this game, there is a big one- Wii Fit has more games, Jillian is excersising. But, she gets to the point