I've tried a lot of different workouts, machines, and fallen into some of the hype of other products. This by far has exceeded my expectations. The intensity of the workouts can be whatever you choose. I like the fact that you can increase the workout by either doing more of the advanced moves, adding more resistance via tighter bands, or even multiple bands. The overall workouts are fun, and Barry keeps you pretty motivated to stick with it for the 60 seconds per workout. After my first 30 days I've lost close to 20 lbs. and almost 3.5 inches off of my gut. My goal is still a little ways away, but I know I'll be able to get there. The only thing that was a little bit of a downer, was my level 1 band (the green one) broke after the first week, I think it was rubbing on the side of my shoe a little too much and wore through, (I could have been doing an exercise wrong that caused it, but I'm not sure) I just threw in the level 3 band and have been using that since. I plan on ordering extra bands and some other workouts from the website to pump up the intensity of the workouts soon. Overall this is a great product and I would recommend it to anyone looking to get back in shape.