For $20 you get around 257 pages of content, tables allowing you to name and fill a quickly prepared adventure, flexible mechanics and your very own guide to how to create an overbearing Wizard who takes over (a portion of) the world.
And there's even more! The modular battle system lets you modify the game for the crunch you want, and as this is a duet system (which usually features, y'know, one player character), your player can use Thumbs to allow themselves to make mistakes and roll back time so they can take a different route. If they die, (which they tend to), it's not automatically game over; your next character can pick a legacy based off of your dead (or more hopefully, retired) ex-parrot.
Not to say this game is built to be easy, but it's definitely one that is built for *fun*. There's a lot of good advice for duets as well, and the writing is easy, accessible and above all, hilarious. And who doesn't like a rash of bumbling, overpowered Wizards to rule them all?
I will say this--a mage you will not be with the game's general ethos. You, good adventurer, are a pitcrawler, and there you will stay. The game is however, extremely hackable, which goes back to the modular crunch in the battle system--you can add elements and take them away as you please, and who is to dictate your choices except you and your (hopefully-not-too-unhappy) duet partner?
I can't begin to put into words how much I love this system for everything it presents--from the CYOA stylings, to the Savage Worlds-style dice mechanics, to the tables and the extremely quick and easy character creation mechanics. It even comes with a sample adventure!
All that to say, get this if you like fun, and/or you're looking for a fully realized game intended to be played with one other friend, lover, or insert-here-parrot-of-choice.