After further examining their site, and after hearing about Astraea's experiences, I must say I'm very skeptical.
I find it very odd that although the site makes reference to a staff, a board of directors, and an unspecified number of astrologers, there is no actual name of anyone listed anywhere on the site. Why the anonymity?
Like Astraea, I'm skeptical about the supposed history of the "society," and I'm also skeptical about the "research" which they claim to have conducted. Now, I haven't read any of their books, but one would think, after all the effort involved in doing that research, they would have provided some documentation of it on their website.
I can't help wondering if this is just one person, who put together a system and then invented a society and some nonexistent research, and who has been marketing it very cleverly.
-- Lee