Tremendous game! I can't remember the last time a game pulled me in as deeply as this one has. It feels more like an interactive, cinematic experience than a video game.
The facial animation, voice acting, interactivity and engaging environments combine to produce one of the most fantastic games I've played all year, if not in the past few years.
If there was one downside, it would have to be the stuttering (very mild, but distracting) and the frequent level loads (though nowhere near as bad as in Deus Ex 2). The game plays great even on a nearly two-year old machine, even with most of the eye candy turned way up.