I have been running regularly for the past 6 months, so with winter here, I thought I could use a good cardio workout. I already own ULTIMATE PILATES and LIFT WEIGHTS TO LOSE WEIGHT 2 from Kathy Smith and I truely enjoy them. As for FAT BURNING BEAKTHROUGH, my mistake was not reading all the reviews before purchasing it.I agree with customers who said the step routine was very complicated. I have tried it many times, and still miss quite a few steps. There comes a point where I just can't follow anymore, and my heart rate goes down. The camera angles make it difficult sometimes to see the leg work, and those who don't have a step at home will not always see the lady on the right of their screen who is the only one without a step.I do like the weight lifting and ab section though, which I combine with other workouts or pop in after a run.I would love to find a good and relatively simple cardio workout either from Kathy Smith or another fitness expert. Any suggestions?