Finished the game. Took my 16.5hours watching all the cutscenes and comm talk in it's entirety from beginning to end. My take goes something like this.
The GOOD:
Graphics. Character model look great along with enviornments and cutscenes. Top notch presentation all the way through.
Sound. BGM, soundtrack and effects were easily the best I've seen in a game. A very good soundstage and excellent work on the surrounds.
Story. When there is so much emphasis and time spent on the story, it's going to have it's good and bad. The Snake/Liquid interaction is great along with Big Mama/Snake.
Raiden. Such a badass he deserves his own line
The articstic fluidity in his combat was just amazing to see.
Weapons. If you like guns and gadgets, this is the game for you. And they all can work. Nothing seemed useless to me.
Camera work. Never a problem and never in the way (3rd person). Even in cutscenes the camera work is great and highlights the characters amazingly well for emphasis.
The BAD:
Gameplay. While you get a large variety of guns, outside of aesthetics and stat ratings the feel was pretty much the same. The camera doesn't move as well other FPS games when in FPS view mode.
Cutscenes. Often it felt like an interactive anime series than a game. Clearly some of them were too long and unnaturally extended with verbose dialouge.
Game lenght. On my play through I wouldn't be shocked if actual gameplay was around 6-7hours with cutscenes and comm talk around 9-10hours. How about 5hours of cutscene and comm talk with 12hours of gameplay Kojima?
Dialouge. Goes from great to cheesy. And when I say cheesy, I mean late night, straight to TV, B movie cheesy. Although I think it's just a byproduct of having too much in there. It can't all be great.
AI. Enemy AI doesn't seem to exist. On Solid Normal atleast, they do nothing worth noting. If you have good FPS experience you'll never get overwhelmed or even flanked. Each area has good choke points where they'll funnel into so you can pick them off with ease.
Controls. Clunky and overly complicated. A bad combo. No blind fire and the lack of ability to cycle weapons with any consistancy takes away some of the immersion.
Facial expressions. Or lack there of. There's no fluidity in facial animations. Very stiff. The lip movment isn't very good either. With so much of it, it stands our after a while.
The UGLY:
Boss battles. Easily the worst boss battles in a game for some time. The only good and fun one being the Rex fight.
B&B. Since they made for most of the boss battles, it's expected for them to make this list but aside from that, their cutscenes/dialouge/backstories are easily the lowest points in this game. They never really fit in with the story and clearly felt tacked on for the sake of "boss battles." When you first see them in the cutscenes in the opening act you think "oh man this is gonna be cool to fight!" Then you actually fight them and there's nothing to it.
Over the top. Kojima tries too hard to make you feel bad for the characters. It's like the saddest story ever told followed by even a sadder story. If you're EMO, you'll eat this stuff up. I often found it comical.
Overall, I'd give the game a 7/10. If you're a huge MGS fan and completely buy into story then you'll eat this up. For someone like me just trying to enjoy a game, it falls short of that. The redeeming value here is the overall production value and the effort involved. It's certainly worth a play through even for new comers to the series. If you're into anime and very dramatic stories, this seems to be an interactive extension of that. From a strict gaming and gameplay experience it falls short of other great games out there. Cliff Bizenksi of Epic games put it best when he said "MGS4 is a passive experience." My translation goes like this: you never ever feel like you're Snake. The game never gives you the illusion. Instead you're Snake's guardian angel so to speak. Guiding him where he needs to go so you can continue the story.