I love all of Jillian Michaels workouts! Hard Body consists of two 45 min. workouts that get progressively more challenging. I started with Jillian's 30 day shred a year ago, and have not seen such amazing results with other workouts as I do with hers. I did change my eating habits as well, which if you want to actually see results - that is what you must do. Over the past year that I have been doing these workouts, people have asked what I was doing to stay in shape and I tell them these videos are my go-to. I can wear a bikini for the first time in years. I work all the time and can't get to classes at the gym and I alternate these videos with running 2-3 days per week. Of all Jillian's workouts, I must say the second workout on Hard Body is my favorite so far. Kicks butt!