Hi!!! I'm on day 57 of P90 but recently received a HHA kit. I'm contemplating doing the tapes on some days when I feel as though I need just a little more oomph. I was going to use it as a follow-up program, but after doing a round of SI6, TMT, TJ, and now P90, my endurance has really picked up.
So, while I'm not officially doing HHA as a stand-alone program, do you mind if I post my experiences here? I won't be offended one bit if you'd rather I didn't.
Either way, I totally believe in the BB products (obviously) and if you're committed, you will see results.

I just started SI6 back in May and have gone from a size 12/14 to a solid size 4. I was doing all sorts of things before I picked up a copy of Slim in 6. I've stopped and started programs several times in the past, but this time, I was committed, stuck to it, and saw amazing results.
I have four children so am far from those 6 pack abs. When I first started losing weight, I weighed 200 pounds and now down to 135. After all that weight and four babies, it'll be a miracle if I can get any kind of definition in my abs.
I also homeschool and considering using the HHA program as our PE, since the first program is only 30 minutes and the children think it's just dancing. It'll also be a fun way to interact. I'm thinking of doing the beginners schedule with the young'ns as I finish up P90 and after I take my rest week, move on to the Advanced schedule of HHA.