It's fun, it's immersive -- it's downright fantastic. Who cares if it's short?
Of course, no great success comes without great sacrifice, and despite this being a fantastic game that everyone should play once, Kong suffers from a fatal flaw - time. At most this game will take you 7 or so hours to complete, and offers little to no replay value. Although in many ways, the game's length is as much it's strength as it is it's weakness. Keeping things short ensures solid pacing. You can easily complete the game in one sitting as the story unfolds in such a compelling manner that you won't want to put down the controller. Had the game been lengthened artificially, it may have seriously dampened the experience.
The gameplay itself is rock solid, and if you happen to play the XBox 360 version you'll be treated to some of the best graphics available at launch. Just make sure to give this one a rent or wait for a significant price drop. As great as this title is, 7 hours of gameplay and no replay value just doesn't justify a purchase.