Personally I've pre ordered this, after playing the demo through about 2–3 times with each class and loving every minute of it.
They've modified the interface to be much more friendly to console users.
Fights feel a lot more fluid and intense, game flows heaps better than the first.
They've adopted the same sort of conversation system as mass effect but with a little bit more finesse and not just good, neutral, evil.
All in all I'd say a definite buy........ I know I did!