Fitt44 is right, I've watched 5 of the DVD's (at work, was delivered today) and it's Turbo Jam in fast forward. Not sure how I feel about that.
The HIIT programs are all Turbo rounds, so that looks pretty rough. If you have Chalean extreme, there is also a workout calendar combining the 2 programs, along with the regular Turbofire calendar as well as a beginner calendar if you arent ready for crazy intensity. Lot's of stretching/yoga classes in it as well.
The nutrition program is basically a clean eating diet, the rest and recovery shake is orange flavored (eww). The journal is pretty cool though.
I'm not as excited as I was, just previewing the DVD's. So far it looks like Insanity has more intensity and variety, but I will start the program and decide. This might be one I use the 30 day guarantee for.