Even though they charge a high price for the course I don't believe that it is a scam - infact I would go as far to say that it is a good investment provided you are dedicated and disciplined - I cannot say it has worked for me but it has worked for at least 3 close friends of mind who are really having a ball with it.
One of the reasons that it has not worked for me is because I have not had time to work on it - I sincerely believe if you don't give it an hour of effort each day at least 5 times a week (this is what my friends have done) don't believe you will be able to make the learning process second nature to you as you desire.
For best results while you are learning the course, there is a necessity for being in peak mental and emotional state - if you approach it as a chore and want to go through the motions you will find yourself spinning your wheels. This too has been one of main reasons for my inability to benefit from the course; I basically am in a perpetual panicked and anxious state when I have to learn something new so I have suffered on those counts as well.
The course is a good one and you will get out of it what you put into it - and since it depends so much on your mind it's imperative that your mind is at its best when you try to go through this.
Regards,
Flutie