I've read it. Basically you can use it in all the ways the author says it can be used. All players no GM, players and GM, solo-play, and writing aid. The only drawback is that it still does feel like you are examining your own belly button - with a few twists thrown in.
I have used it as an opponent for solo wargaming. That is, I play the good guys and Mythic plays the bad guys. -And I have lost too! But you really don't need the whole product for that, just the basics. But it does work and it is pretty clever.
