i actually had great results! i ordered my wedding dress one size smaller and did insanity for only 6 weeks before my wedding... and my dress was already too big! it comes with a meal plan as well, which i didn't do. i'm sure the results are amplified by doing their diet... i'm just too picky. i would def recommend it, especially for someone who is needing more cardio! let me know what you guys think of it as well!