Outstanding choreography, effective and fun exercises will keep you motivated to keep using this DVD. Jessica Smith will lead you through 5-10 minute workouts, where I found myself doing more than just one workout. Not many sit-ups here, you'll work your abs/core in a rotational movement, standing crunches, hold planks, work on your side, do balance challenges and basically work your abs in supine, prone, standing, kneeling, sitting, all on a mat. A++, this will be an absolute asset to your fitness library. Recommended for all levels because Jessica will progress to an advanced position in the second set of the routines.