JKD The Enigma: Well worth the $100. It is a barebones intro/compilation of his life's work. In many ways, it is almost like training live with him in that he covers much the same material; that I say from experience.
In TE he stresses that ideally you want the footwork and distance management of the boxer, the interceptions, destructions, and reflexes of Kali, the trappings and straight blast of Wing Chung and Sprinting, the terminations of Muay Thai's elbows, knees and headbutts, the cat-like reflexes and attributes of Kali and Escrima (defanging of the snake) and the keypoints knowledge of Gracie Jiu Jitsu blended intelligently with KinoMuTai.
That is it in a nutshell.
I am of 2 minds when he says that TE makes his previous videos obsolete: Yes I agree that TE is a streamlined version of his previous work: It is purely the down and dirty techniques that will win you an ugly street fight. What I like about his previous work though is that much of it is spent in developing attributes.
In a sense I have adopted and modified much of his philosophy to suit my needs: I train Karate for fitness, balance, coordination, aerobics, strength, and attribute development; Gracie Jiu Jitsu for the brain and familiarization with ground fighting, and JKD The Enigma for self-defense.
I highly recommend you practice TE prior to training with Mr Vunak if you so choose to train with him one-on-one. For me both were money well spent
Cheers.