Gameplay looks far to similar to Alpha Protocol, Deus Ex, Splinter Cell and others of that ilk. That certainly wasn't how the older Hitman titles used to play out.
It also doesn't sit well with me that he's seemingly happy to kill NYPD on a whim. I thought it would be much more "get out without being noticed" than "kill anyone who gets in your way". He never even bothered to hide the bodies.
The AI are all very similar too. In the section where he's leaving the library and takes a human shield the 2 fat cops in the centre are exactly the same model. And at the end, when he merges with the crowd, the repeatition of the models is massive. At one point there are 5 identical men walking side by side, blatently obvious. It bothers me more that these are obvious flaws that no dev thought to rectify.