If you ask Bill Harris, he says that the program will work for you, and have yet to hear him say something like, "Well, Holosync doesn't necessarily work for everyone..."
It could just be that the Awakening Prologue isn't challenging your brain in the same way it does for a lot of people, so I'm sure there are changes occurring, they're probably just more subtle. And just because you say you're not feeling upheaval, that doesn't necessarily mean anything either. Bill says that the resistance can take different forms, falling asleep being one of them.
My advice would be to stick with it, and if you haven't seen any results at all after completing Awakening Prologue and then after moving on to the next couple levels, then I'd suggest trying something else.
