To anyone claiming to be a fan of Square Enix games (or, if you're like me, you remember them better as Square Soft, or just Square), you cannot claim such unless you have played this game to completion.
Easily one of the best Turn-Based RPG systems to date. Combining the attacks of your characters to make stronger attacks really changes the pace from your typical Final Fantasy style RPG. Time Travel is used very well in the story and in the mechanics of the game. Choices made in earlier periods of time affect the future. It is a great game that I come back to often to replay.