I rent this dvd from the library to see if I would like it or not . I definitely do ! I generally have a hard time get into work out if there be not music or dancing involve . I have a background in dance and know how great of a workout it be , so other type of exercise seem like a bear to I . this workout keep I interested . I start sweating about 7-10 minute into the video . it be really great cardio , but I could feel my thigh , ab and arm get a great workout , too . some of the step be very fast , but it be fun if you just let go and do not think about how you look do the move . the cool-down be probably my favorite part though = -rrb- it be very relaxing ! word of caution : there be a lot of jump in this workout . if you do not have good knee or ankle , I would just try to do a lower impact move in place of the hop . I be a petite girl and my ankle even crack a few time -lrb- but I know this be normal for I -rrb- .