I've attended a few of David's workshops and I feel that David is genuine and sincere. I'm and Air Force vet and I get the the "vet vibe" from him, as in, he's not a phony. David is very believable and his coaching is easy to understand. If you have a question, he answers as quickly as he can. I believe his program is quite doable, and he helps you along the way when you need it.