When an injury sidelined me from running and hiking, I needed something new to keep me in shape. Fitness boxing has been a real success for me! My Garmin tells me that my heart rate in in the zone I want for running anyway, and indeed, if I allow set my Garmin for "indoor running" and ask it to interpret the movements as steps, the time it takes me to "punch a mile" is comparable to what it takes me to run one.Many reviewers have complained about the inaccuracy of the program for scoring movements, and that's definitely an issue, especially for steps rather than punches. However, I find that as I have improved my technique (in part by watching You Tube videos on actual boxing) my scores are improving. So if you're the kind who is frustrated by imperfection in scoring, well, you'll be frustrated. But if, like me, you're looking to do some meaningful cardio, and just need the feedback to have a sense of making progress in technique, well, it's not a real drawback.Finally, I want to say that now that my knee is healed, I'm still using this program for the pure joy of it, and I'm finding that now that I can engage in the lower body movements as vigorously as the upper body ones, it's a surprisingly effective whole-body workout. Not just my arms and shoulders, but my glutes, quads, and hamstrings definitely feel the burn when I am done.This might not be the experience of a 25 year old athlete, but for an active and determined 60 year old woman, Fitness Boxing has been a wonderful tool in my toolkit.