Okay here is my final review of the game. Spoiler free edition.
The atmosphere is great. The opening chapters really draw you in and set the mood for the rest of the game. But even from the beginning the gameplay mechanics and the controls become an issue. Driving, shooting, running/chasing on foot are all clunky. All I can think is that this has been done better in other games.
The interrogations are interesting, for the most part extremely well acted. But Cole is easily the worst actor or worst written character in the game. His partners are always interesting and in many cases funny. But Cole is unlikable and bipolar. The problems with the interrogation scenes really mount up as the game goes on. I also didn't like the mechanics of the interrogations being broken down into truth, lie, or doubt when at times they don't seem to apply. I found myself wishing for some more dialogue options, a way to coax more out of the witness or simply to have greater control over the crap that comes out of Coles' mouth.
The investigations are the best executed portions of the game. I really feel like a detective looking at gruesome dead bodies and looking for evidence. The mood is especially strong in these sections. The game seems to work the way it was intended in the investigation scenes which is the only time I felt that way about the game.
As the game went on I found the flaws in gameplay and plot really grating. Its like the little things mount up after each car chase, shoot out, interview, etc. I should note I never tried to marathon the game. I never did more than 2 cases in a row beyond the initial tutorial section.
Still, despite its flaws and laugh out loud unintended comedy, the game is oddly compelling. Even though I don't like some gameplay sections or find some stuff ridiculous, mostly acting and story, I still wanted to find out what happens next.
Compared to GTAIV and RDR the open world is really boring here. This was disappointing because I thought messing around in 1940's LA would be great. Not so much.
Overall, the game has a lot of issues, enough to sour me on the experience but not enough to stop me from finishing. I think the stage is set for a great, truly GREAT sequel if they address the obvious gameplay and narrative flaws. Final score: 7.5