I got LA Noire today, and so far, it's fantastic! I don't think it's for everyone, but it REALLY immerses you in crime solving and being a cop in the 1940s. XD They do a fine job of making you feel like you're really working a case, even though most of us can say we've probably never worked a crime scene in real life.
So yeah, I'll probably give a fuller review once I get a bit further into it, as I'm still working the first case, but so far, two thumbs up!