I'm glad I kept my order because I'm enjoying this game a lot.
I'm playing total stealth and nonlethal, as in, I haven't fired a gun since the tutorial. The action is hilariously jank fun if you play it as a stealth game. It's on par if not worse than a lot of old PS2 stealth games; I don't mean MGS2 and Splinter Cell, like someone mentioned above, it's more like the ones that came from Japan to cash in on the craze. At the start, stealth was walk up to enemy, hit button, they go down. Now I'm going invisible, I can run and they don't hear a thing, and I have a gadget that creates a sound anywhere I point it, so I can just aim at a far wall and take out an entire room in seconds. This isn't hyperbole. At one point I wanted to open fraps and take a video of how bad the AI was, but it actually helps make stealth more enjoyable, at least. The tiny bit of shooting I tried in the usual bad RPG shooter stuff where you point, aim, and end up shooting eight feet to the left.
That's all the action stuff. The conversation system and how you affect the story is what I'm really liking. The conversation system is better than most games, I think. I can see people not liking how everything is on a timer, but it's never two dudes standing around not saying a word or repeating dialog. I won't do a good job explaining, so I won't too much, but I will say that it does a very good job at making you feel like what you matters. Even the fact that I'm playing stealth and not getting detected, or the orders I do mission despite them being non-linear, and other seemingly minor things impacts conversations.
and yeah, the game is pretty funny.