I've have been researching HT's for a few years now, and the only in-person consultation I have had was with Dr. Limmer. He seemed to be a very good person who genuinely cared about his patients. He never hesitated to reply with an email or phone call when I had a question. Only met him the one time, but I can see why he was well-liked...Not sure what happened, I do know he was active and kept in shape.
My condolences to his family and friends...