I'm obsessed with Elements. Having worked out my entire life (soon to be 53 years old), playing football, wrestling, BJJ, cycling, CrossFit, CrossRope, Starting Strength, kettlebell programs and many other bodyweight programs, yoga/stretching, P90X, you name it - Elements stands out among all. It's basically child's play in that you're doing movements and getting in positions you haven't done since you were a child (animal like). But it's definitely not child's play in the workout you get and the strength you develop. You work your core without even thinking/knowing about it. It's done wonders for my shoulders (both rotator cuff repaired). Since there's no pulling and very minimal leg work, I supplement with leg exercises and pullups on off days and will begin Integral Strength once Elements is completed, at which time I will repeat Elements while simultaneously doing IS. I actually look forward to doing Elements b/c I'm eager to see what's next, and it's just fun. Can't say enough about it. Thanks!!