Any pilots / CFI's a member of this?
Your input would be appreciated on your experiences, and if it's
worthwhile for a current CFI to join.


You'll find opinions good and bad. You really need to join for a year and
find out for yourself. I left because the paperwork and CAP currency
qualifications became too overwhelming. It's hard to stay mission qualified
because every time you turn around something is expired or you haven't been
signed off in the new required training class on how to properly apply the
wheel chocks.