This is one sweet game and having Michael Ironside do the voice of your character doesn't hurt.
If you like the Metal Gear series of games (covert-ops, espionage type games) then this game is right up your alley. This is not a run-and-gun kind of game.
Sneaking is key. Although the ability to snatch someone from behind and interrogate them, use them as a human shield, or just knock them out doesn't hurt either.