Glad to know.
I've indeed heard about many good experiences. In my country they weren't particularly active (maybe still aren't, it's been a long time I don't follow their news any more).
My experience wasn't good. I think it was the most heterogeneous group I've ever met. That's not bad by itself, but it was detrimental under the circumstances.
Besides, almost 100% of them were at least 20 years older than me, so our interests didn't match. I think that that might have played a role on my discomfort -- I had the high IQ but didn't had the repertoire and experience to hold constructive conversations with them. And being extremely socially awkward didn't help me either.
However, between them, there were many disputes over silly subjects, pseudoscience, conspiracy theories, a constant, extensive and aggressive use of irony, and other "unanticipated" stuff.
I only paid the first annuity and didn't want to participate any more.