I think this is a great interval workout. If you need/want to get a good interval workout in, so you have cardio and weights within one relatively challenging workout, this one is great. I'm not going to say it's the hardest workout I've ever done. If you want a true but kicking, go to a boot camp/cross training gym, like I went to before it closed. If you want a good workout you can follow in your living room, this one is for you. You can push yourself as hard as you want and increase the weight, so there is no reason you can't control the intensity of the workout to your level. If you're not into hi-lo dancey areobics or ZUMBA, this is perfect. If you like challenging choreography, you will want one of Amy's hi-lo workout or advanced step dvds.