The Spirit of the Century rules have changed the way I play games. Aspects are the coolest invention since polyhedral dice, letting you create background stories for your character that have a mechanical effect in the game. The basic mechanics are easy to grasp and there is lots of other stuff (like the stunts) that add depth to your characters. While the rules claim to be "pick up and play" you do need to have a good understanding of them before that is possible, but once you have a few games under your belt this is a fast, outrageously fun game. It hits the tropes of "pulp" adventure smack between the eyes and is incredibly comprehensive. Check them out. Play them.
[4 of 5 Stars!]