I'm going on 4 weeks with the combo workout (there was 4 to choose from). and i've lost an inch on my waist and butt. the instructor keeps me motivated and eager to see the results. i did see results going into the 3rd week. but i think this work out needs to be in conjunction with regular cardio like walking or running to actually lose weight. i was fit to begin with, just got bored and wanted to try something new. if you're looking to lose weight, don't depend on just this alone.