What can I say that hasn't been said already?  Other that some minor bugs  that you can patch in a matter of minutes, the game is awe inspiring.  Improvment upon the first game includes many more hours of gameplay plus a  way to judge just how evil (if this is your perfered path) your character  really is.  Streamlined menus for NPC interaction in combat a major plus  and the addition of new perks is very nice.