Anyone who has Kristin Kagen's STW2, how is it? I heard good things about it. I like a variety of choreography, intense and not too much 'take it from the top.' For instance, I would like Kari's Hot Steps, but way overdone with repetition before she even gets into the routine. And, what about Christi Taylor's Solid Gold Step? I like Christi's Still Steppin. How do they compare.? Thanks for any input. I appreciate it!