I have done this workout at Curves and it really makes you sweat...if you do use the video 6 days a weeks for 6 weeks, you WILL loose the POUNDS!! I have friend that has been doing the this video every day for about 3 months and she looks absolutely great. Before she started doing it, she was pretty heavy, now, she's in a size 8 jeans..I also have lost a couple pants sizes doing the Slim n six pack video..I would recommend this workout video to anybody who is serious about wanting to loose those unwanted pounds and inches.I know that it works. I use a couple times a weeks at Curves and I love it. As well as my other Curves workouts In my opinion, this is one of the best workout videos that I have at Curves since I have been a member there, and I have done just about all them. However, this one is the most strenuous one that we have down there, but it really, really works great. Sine doing this video, I have have gone from a size 18 W to a 14 misses jeans in a little less than 6 months. I think thats a pretty good deal. I have had to buy several pair of new pants since doing this workout.