The right amount of innovative—a breath of fresh air, but knows its place as a game and focuses on getting itself to the table. As in, it doesn't leave you scratching your head after you read it, wondering how to actually apply what you read. You WILL have ideas, and WILL be able to pick up a game with it sometime.
Small nitpick is that, despite its ease to getting to the table, I would've liked some example scenarios as a baseline. But, that's also why it's CC liscenced! Get to work hacking, people!