I cannot comment on Natural Brilliance,although it is on my list.
But I can tell you that the Centerpointe program works. I am a third of the way through Awakening Level II. I have had no major shifts yet,but compared to the state I was in when I began, I am definetely on the up. It takes a lot to disturb my equilibrium, and I am much more focused. A word of warning though,some people(including myself) find the program very heavygoing at times. The amount of overwhelm that comes can be too much, this is were the superb support team comes in. The full program does take over ten years but I can find an hour a day to meditate quiet easily. Overwhelm sometimes makes settling down to meditate difficult.
Despite the drawbacks I am pleased that I became involved in this program. After 25 years of searching it is great to have at last found a product that lives up to it's claims.