I started it, stopped it because of injury (wasn't taking my rest days, and didn't get good running shoes).
I started it again at New Years, but have stopped because I had a sick kid for 2 weeks. I'm starting up again, today after work, in fact!
It's a good program. I find that the music I listen to helps me be inspired to run as well, especially if I'm treadmill running.
Good luck!