I have this set, and so far have just previewed it. I think it looks very good in general. I like the variety of moves (similar to previous Tony workouts, but there's a new twist on many moves, and some new moves). Just from previewing them all, I think they would be effective for the amount of time you work out: looks like a lot gets done in a short time.
One thing I REALLY like about Tony's latest series' (P90X+ and this one) is the inclusion of a "trainer's track" audio track, with more detailed coaching (if you want it: since it's an option, you can choose to listen to it or not).
Anyone using the 'cardio' belt or even the reisistance bands with this, I HIGHLY recommend getting a different type of door attachment. The one that comes with BB products looks so iffy to me (the thick part of it that you put on the other side of the door before you close it is not really that thick at all, and if you have doors like mine, with only 2 hinges rather than 3, it doesn't offer much of a safety cushion).
I highly recommend the door attachements from
www.sissel-online.com . The only problem is, shipping costs more than the attachment (I buy two at a time, but even then, shipping is more), but they are worth it to be safer, IMO.