The morality system is horribly implemented but somehow it did manage to make me feel bad for the things I did. Weird how that works.
Other than that the game feels fantastic to play and the fact that every mission has so many different ways to complete it is cool. I'm a really big fan of how difficult it is to fight when you get caught - not because the gameplay sucks like a lot of other stealth games but because it is fundamentally created to be difficult but stylish, making it so that when you do get away with being caught, it feels great. You're still discouraged from getting caught, obviously, but if you're good enough the game becomes completely different. Not a lot of games can accomplish that.