Yes that's a lot of money, but if consider that it was 6+14+14+14=48 hours of work, thats about 40$ per hour, last time i checked speech therapist charged more. And its success rate is pretty impressive. Definitely worth it if you ask me. And it does not stops at those four days, you'll have a personal coach that you must speak to every day, and a list for coaches to talk to whenever you want. And you can attend "refresher courses" with a fraction of that cost. It is a lot of money at the start, but definitely worth it on the long run.