XCOM Noire, this ain't.
To be fair, by all accounts the game actually turned out to be pretty playable for someone who's into XCOM. I'm not one of those people, though; I was more interested in a Mass Effect-style adventure than in something that required real team-positioning tactics. (I got a free copy of XCOM: Enemy Unknown with my BioShock Infinite pre-order, and frankly I don't know what I'm going to do with it.)
What is terribly surprising - or at least, disappointing - given the promotional campaign's heavy narrative focus, is that reviews seem to agree on how poorly-written and lackluster the story is. I've seen some footage. This is bush-league stuff.
What I really wanted to see out of The Bureau, and what would have made me super stoked for it, was either a sci-fi adventure or an authentically-styled 60's-era sci-fi story. The reviews suggest that what's come out instead is a real-time XCOM game. That's all well and good if you actually care about XCOM, I guess. They can keep it.