This is a great series. You won't be disappointed at all. The cardio is mostly in the 25 to 30 minute range, short but intense. The "Power Circuit" workout is a little longer and has good variety (Hi/lo cardio followed by a step segment, blast & circuit segment and kickbox step, blast & circuit segment).
You can mix and match the workouts as you please to make your workout as long or short as you wish. I usually combine the kickbox workout with the kickbox power circuit segment. In one rotation, Cathe had us do three of the aerobic segments our our choice in one workout. I don't think I made it through the third one.
Additionally, if you want a total upper body workout split, that's on the dvd as well. It is a combination of all of the intense daily 10 minute "one body part" upper body workouts into one workout. It's tough.
Leaner Legs is also included in the package, if you want a lower body split day.
There is also a combination of the daily ab workouts. I think the plank work is included as well.
I enjoy all of the workouts in the set but my favorite workouts are "Step and Intervals" and "All Step."All Step" is so fun to do once you get the footwork down. The blast segment at the end is a real goodie --2 sets of power 15's then 2 sets of power 7's then 4 sets of power 3's. (As Cathe says, "Oh do we have to?!?)
Try it you'll like it. :9