Simply put: buy this game. The rules are so simple yet robust that player and GM will wonder why it hasn't been done this way before.
The digital version comes with mini's (paper print-outs), online tokens, rules, two unique world primers (Fantasy and Sci-Fi), small monster manual, and the now legendary Game Master section. This section alone is worth the price of admission. The system is regularly updated by the creator (updates to digital version free to those who purchased through DTRPG) and the Google+ community is simply incredible to find inspiration, help and groups to play with.
This is a Core RULES Set; it does not include the Vol 1, 2 or 3 card decks just as those do not contain rule sets. You do not require the card Volumes to play this game (my group uses crafted sets). That being said, all card Volumes are highly recommended as well for table-top and online play as the art is fantastic and help in story creation.
Is it perfect? Probably not. But I will say that I have stopped using other systems and do not miss them. Pacing, action, and freedom to role-play: to me, that is perfect.