A great level of fun (when played correctly)
Graphics: 6/10 Not many "wow" moments, except for the hundreds of NPCs that can be shown on screen at once. Looks like a very polished xbox game.
Animations: 5.5/10 Human movements don't look very realistic, but are do-able. Agent 47 has a strange running animation, just like Sam Fisher.
Sound:6/10 Decent voice acting and music, but the sounds could have been more interesting.
Presentation: 6.5/10 Not much to talk about here except that the presentation is just good enough. Cut-scenes add to the game and it tells a pretty interesting story but its still no comparison to the more big-budget productions.
Rent or Buy?: I'd personally give this one a buy, since the replay value is pretty good. You can go back and go through each mission differently, plus the difficulty is really hard, and I've only played on the rookie setting.