Like the other reviewers I did not expect to have to have a aerobic step, but purchased one anyways. The cardio kickbox is rather disappointing if you are looking for a advanced cardio session- I found it rather short and not enough to work up a real sweat. The other dvd's however prove to be a bit tougher although I do find Jillians rantings to get annoying after a few times. Also the nutrition tips are a joke, it is nothing more than telling you the tital of her book.