| Their big secret is memorizing the E string, then following the the notes in this order: A,D,G,C,F,A#,D#,G#,C#,F#,B,E, from the E string down to the G string.
Basically just make up a silly story that makes you remember the notes in that order, then whatever note you start on the E string use your silly story to find the notes on the strings going down toward the G string.
It works for finding notes, but in and of it'self will not zap the memory of the entire fretboard in your brain, within an hour like they claim. It might make finding notes quicker a little easier. Just like most online/download products they have to exaggerate what it does to get any sales at all.
I use it but, to find notes. You should learn the circle of fifths and then the octaves. And if you can memorized the notes of the any scales you are doing. | 
