I feel your pain! I have both Insanity and P90X, I also have STS and STS Cardio, you can say I'm addicted to preplanned excersice tapes. I have done P90X, STS and STS Cardio and I'm doing Insanity now. Of all of these, P90X took the weight off. In two rotations I took about 20 pounds off. P90X is the most balance program consisting of 3 days of weight training, one day of Plyometrics, one day of KB and one day of yoga. It also includes an optional stretch. I love STS and combined with STS Cardio you will get three days of weight training and three days of cardio. I don't get bored with Cathe's approach but to be honest I didn't lose weight either. I have done STS twice and STS Cardio once in conjuntion with STS. I am currently doing Insanity, the third week. Yes these tapes are short but they really kick ass! These tapes are pure cardio, consisting of three minutes of HIIT followed by 30 second recovery. Can you say sweat fest? I have not lost weight yet, but to be honest my eating has been out of control lately. I think in the second month the work outs get longer and the weight will come off. Hope this helps and good luck.