I recently got this video, and am going to return it after only trying it once. My biggest problem with it is that most of the cardio exercise is derived from jumping up and down. This overstressed my calve muscles, and didn't seem to affect any other muscle group. It didn't feel like the punching exercises were especially taxing, and the twisting seemed potentially dangerous. As well, it didn't seem like Kathy and Michael had been working on this video for very long (there was a point where even she couldn't follow him).

Instructor Comments:
While I am pretty neutral about Kathy, I didn't have much faith in Michael Olajide's instruction. It seemed as though he could have been more description about proper form, and there were instances where Kathy had to interject information he missed.

Anna Keeler