If there is an RPG that compels one to burst into song in its praises, this is it. (No wait, how did Sweet get in here?) The Cinematic Unisystem is a very good system, but the real joy of the game it is treatment of Joss Whedon's legendary series and its elegant treatment of the inequality of power inherent such a genre. Among RPGs based on media licenses, this is one of the more playable, and gives GMs a lot more creative freedom than other licenses.
[5 of 5 Stars!]