Wow I'm surprised! This is really great!
Graphics: Great! I run it on the highest settings and I thought it would be like Contracts but it turned out it are like Splinter Cell: Chaos Theory. The shadows on the models and the clothes they are wearing looks so amazing. Its some of the best graphics I have ever played with. Though they could have used the pixel shader effects a little more. I never think games can get enough pixel shadering (Just look at Splinter Cell).
Sound: The music is as always great. Silent Assassin has too much classic and Contracts had too much electronic. This one has a good mix of both. 4/5 of the music is classic and that fits very well in. Almost only when your cover is blown you get to hear the electronic and thats how I always wanted it to be. I got surprised two times with the music. First was when I heard that they actually used that cool song apocalypse from the first trailer, in the game (They e-mailed to people that it was specially made for that trailer). And second was when I heard the one of the same themes thats in Contracts. I love returning themes as long as it dosn't end up with some James Bond or Mission Impossible soundtrack. The voice acting is OK the most of the time. David Bateson (47) and the one playing Diana is really good. The gangsta **** in the first level are voices are stupid but thats also the only bad bad voice acting in the game. The sound it self is as it should be though I'm missing some high crashes when you push someone into a wall. But the sound of the pistols and shotguns mixed up with they're recoil and all the blood just makes you piss your pans.
Value: You can play it again and again.. I'm going to play it now actually! Its worth it!