Yeah the game has clearly met my expectations...
Vlad seems to be the only person no liking it and his points are valid. I think if you are a PC gamer that like part 2 the most, and have set expectations... this one will feel underwhelming.
If you are a console gamer, or if you like the movies and want to play as aliens or Predator (as well as a decent marine campaign) there is lots of fun to be had.
If you are coming with no expectations, this is a solid corridor shooter...along the lines of FEAR 2 and 2009 Wolfenstien. Not the best FPS around...but if you are not in to realistic shooters and have played Left 4 Dead 2 or Halo ODSt to death...prolly the best console FPS for the next 3-4 months.