Man, I've been playing for 90 minutes and I can safely say...I LOVE this game.
This is the first game of it's type that I've ever played, and I'm confused as hell, I have no clue what's happening...and I'm loving every second of it.
The game doesn't really hold your hand, and it requires you to actually think about what you're doing and to explore your surroundings. I'm investigating the first town and the first "main quest" (I think it's the main quest) and I'm just plugging away.
The game is fun as hell - the world is so rich and well thought out. Everyone is doing their own thing, and the towns actually feel alive.
Anyway, that's my first impression, but so far I love it.