I met their president briefly last month. He seemed like a nice guy and was sincerely into the sport. The president was trying to recruit my swim coach, who is a top notch guy, to train club members.
Not much - but that's my exposure to St. Louis Tri Club.
I know that a lot of their members are great athletes. As of last year, however, the club did not host any open water swim practices. Hopefully they will consider them this year.