The Fire Emblem: Awakening demo is now available on the eShop. I'm downloading it now.
Immediately off the bat the game is really polished and the 3D effect is done quite well. There's a nice amount of field of depth and layering with the text dialogue. Also, the voice work in English is actually pretty good! The graphics look nice and the combat system is pretty good, especially pairing attacks. The demo has a 30 limit try and only has casual mode on it and not much customization of your avatar character. There's now also a first person mode that's pretty cool.