Has anyone tried the Stutter.help online clinic?

Has anyone tried the Stutter.help online clinic? [Stutter.help](http://stutter.help/) It's a hypnotherapy clinic that claims to have a success rate of 80%. It's a minimum of 2 months with weekly treatments. $5000 up front, including a $500 dollar assessment that will be returned if you decide not to proceed with the treatment. I'm getting more information on it tomorrow morning. Does anyone have experience with this? Experience you can share about it?