I am just LOVING the Dream Body Cardio series! I love the first set too, but prefer the cardio emphasis of this set. They are both a mishmash of toning and cardio though. I tend to do DB Cardio DVDs more, and when I revisit the original set, they seem easier to me. I love all of them! But my favorites are definitely Intense for the arm work (my favorite being the upper body work while in a static wall squat), Fusion 50 because it's just so fun, and Batabarre because I like how the tabata part really works the entire body. I love MILF too but find the cardio to be simply grueling, I admit.
I didn't care for Bikini Bootcamp in the first set so haven't tried it yet for the second set.
I really like that the second set uses the gliders often and I feel like the plank work intensity is close to Horizontal Conditioning, which I also love and use often. In fact right now I am mixing HoCo, DB, and Tonique and they mix together very nicely.
I wonder if/when they will come out with another set, and what it will be like! I am sure to pick it up
My favorites from the first set are Fusion Mix and Tabata and Toning. I also like to mix in Barre but for a slightly easier day. For whatever reason I didn't click with Fusion as much.