I just beat the full game, and here's my two cents:
Overall I'd say it was pretty good. The first-person stuff was mostly excellent (if a little repetitive), but the Kong stuff sucked a lot. He controls like a tank and you essentially just end up mashing your way through his segments. Thankfully, they are few and far between and add up to maybe 15% of the game. The full game took me about 7 hours and I doubt more than an hour of that was as Kong, so it's not a huge deal, but it does bring the game down a few points. And the game is a little reptitive, even for a 7 hour game.
Still, the sense of tension was amazing, and skull island flat out ruled. I would deffinitely say that King Kong is the greatest survival horror game I've ever played. That's actually not saying much, because I haven't liked any other survival horror game. I found the pre 4 Resident Evil games to be absolutely horrible, in no small part due to respawning enemies, but no respawning ammo or health. This resulted in unneccesary stress worrying about your resources over a 10+ hour game. But in King Kong, your health regenerates over time, so that's never an issue, and though your ammo is in limited supply, sticks aren't, so there's a lot of tension groping around for them while you and your crew are getting attacked. And if you're low on both ammo and sticks you can resort to the ingenious food-chain system and create a diversion to sneak past enemies. It's survival-horror that always leaves you with a way out, and in this aspect King Kong is just plain brilliant.
There may not be enough meat to the game to warrant a purchase, it's just about perfect as a rental.
Pros:
--excellent sense of tension in first-person mode
-simple, yet ellegent control scheme
-amazing graphics and even more amazing sound
Cons:
-Kong stuff flat out sucks
-too short
-a little too repetitive
overall 8 out of 10.
P.S. On a side note, the game does the thing it was created to do very well: make you want to see the movie. Before I had my reservations about a Jackson Kong flick, but I've somehow changed my mind. Maybe it was the music, which was excellent and I'm assuming was taken from the score of the actual film. And even Jack Black sounds better for the part than I had expected now that iihear him more.