I bought this DVD after reading reviews for a weight circuit training DVD, (there are more reviews on the amazon.com website). I have to say that I tried it for the first time last night, and I am so sore today. I workout regularly, and run, but today I have muscle soreness in places that don't normally get sore.. and I know why. I don't usually train with a resistance band, and this DVD is great because Michelle switches from the (included) resistance band and free weights. She gives suggestions for when you should use your 'heavier' weights and your 'medium weights'. I used to have a personal trainer and he always made me do 1 min cardio intervals while training with weights, and I really wanted to find a workout dvd that mimicked that same type of workout, because the benefits of keeping your heart rate up while weight training is great, and this dvd did just that! I think that with this workout, you really get out of it what you put into it. It's not an 'easy' workout for a rainy day..... no weight workout ever should be 'easy' since you should always be pushing yourself to use a little heavier weight if things start getting too easy. Having said that, because 'they' always say if you're starting a new workout, don't push yourself, I only used 5 pound dumbells and really wished I had used heavier weights for the rows and other back excercises. All in all, this is a great circuit training workout, and I love that there is the option of doing the 'express' 35 min version (I haven't tried it yet since last night was the first time I used the DVD). I would definitely recommend this workout!