I used the Awakening Prologue CD for about 3 or 4 months on a regular basis - 2 years ago. I feel like some of my feelings and emotions have disappeared. I always watched StarTrek and liked the Volcans (spelling?) and I can now relate with them. I didn't plan on losing some emotions. My brain became more logical. If I knew this would happen, I wouldn't use those tracks.
I like the Super Longevity cds though.