3 years in the making and well worth the wait!
Gameplay: The gameplay of Twilight Princess is similar to it's predecessors, but vastly improved upon. Everything is better: character interaction, item abilities, attacks, story, pacing, and so on. I've only played about 8 hours worth and I just got past the third dungeon!
Graphics: TP's graphics are better than I expected. Characters are more expressive, the world is huge, and there is a lot of little stuff to look for.
Sound: I like the sound of this game. It's a mix of nostalgic Zelda music and some excellent ochestral music. Overall: Zelda: Twilight Princess makes Ocarina of Time look like a cake walk. Seriously. No Zelda fan should miss this!
(Jeff should've given this game at least a 9, but that's his bias!)