Finished this last night and nabbed the Platinum Trophy, here are my quick thoughts:
+ The most gorgeous game I have ever played.
+ Solid gunplay.
+ Fascinating and intriguing world.
- The pacing of the story is off, especially towards the end. It has a very slow initial build-up, then suddenly, you're flying through chapters left and right
- Gameplay set-pieces felt too restrictive. I understand that they were aiming to tell a linear story, but creative weapons like the Thermite Rifle felt way too underutilized as a result and could've made for some great environmental puzzle-solving. Also, instant-fail stealth sequences are never fun.
- The Lycan battles, without spoiling anything, are underwhelming, to say the least. Way too easy to manipulate the A.I. and cheese your way through these battles.
- Finally, the ending, as many have already mentioned, is a letdown, as the story concludes just as things are starting to get really interesting.
Overall, it's a game that I recommend anyone play, just keep your expectations in check. The quality of the visuals and the engrossing world made a play-through worth it to me, but the actual "game" portion leaves a lot to be desired.
Also, Galahad is a player.