Great on the 360 but better on the PC
Minor shortcomings are the drops in frame rate from lofty viewpoints (probably because of the level of visible detail) and the almost inaudible voice tracks of the main characters, which is annoying considering you can hear the NPCs belting out from miles away but you can't hear the main storyline from the characters standing right in front of yiou unless you turn the excellent soundtrack off.
Without doubt one of the best RPGs on any console, however, and well worth your cash.