I ADORE them. They are both. I am working my way through them. So far I have done the first 15 of the 20 workouts. Almost every one of them has a cardio component. Of the 15 I've done, 9 are intense cardio, and 4 have intense cardio components and only 2 seem more strength or core focused. Of the 15, I would say almost all of the workouts contain some body weight strength component and core component. None of it is easy. Almost every workout has been challenging in some fashion. And they are varied--you are not doing the same thing over and over again. Definitely keeps you guessing. I guess you could call it metabolic strength training. But in the 15 I've done, you have a mix of boxing, body weight strength work, core work, plyometrics, low impact (but still intense) cardio, lots of lower body work. Even some serious stretching.