Anybody else doing classes? U-Jam Fitness is like a more intense hip hop version of Zumba. There's not a whole lot of classes outside the San Francisco Bay Area right now, I think, but they're expanding fast. If one happens to pop-up in your gym, and you want crazy cardio and like hip hop, definitely check it out! I burn like 600 calories in a Zumba class and something like 1,000 in U-Jam, lol.