I really dont like it. And I'm typically a big Hitman fan. For a franchise built around player choice, you don't have much choice before going in a mission, you dont get access to a weapons bank or so on before a mission. They could have at least added a black market system or something. I bought a weapons an armor DLC thinking i'd get to use it, but those are only available in non-campaign mode that I'm not interested in. Also the game is blatant ripoff of most of Splinter Cell Conviction's core gameplay features (which is humbling, as a Ubi developer), it makes their marketing slogan "The original Assassin" even more ironic, as nothing in the gameplay loop is original. Besides the presentation which is very well done, the rest is very mediocre and unsatisfying. Ever since the first gameplay trailer, I figured out the direction they were taking and was instantly disappointed; Hitman Conviction.
I'd say it as more in common with splinter cell double agent than conviction. Either way, those games were terrible and shouldn't inspire any develloper trying to make a good stealth game. No offence.
Now both series, once at the top of a genre, forgot why they were fun and compelling in the first place. Let's hope eidos montreal can salvage this mess before it ends up as an other soulless action third person shooter.