No, but I have watched a few videos on YouTube and bought some of the books he recommended. These indeed cover a lot of the material that he uses and been a great help for my self-therapy journey. What you need to have in mind that everyone likes to get paid for the work that they do. It's not a scam only because you deem it to be not worth the money. As for myself, I would only buy 1-1 or maybe group sessions because I know that it is hard work hosting these and it would keep me more accountable for my progress. But then again, a speech therapist would be cheaper where I live.