Was in the introduction course about half a year ago. I was a pretty heavy stutterer before, but i would say about 70% of it is gone, and i can pretty much control 25%, and only 5% is "real" stuttering, but only occurs when im not focusing. The only downsides to the mcguire program is that its pretty expencive and its HARD WORK. If your a slacker you will probably only get pain from it. I can link you my own "before and after" videos if you want to, pretty big difference.