Really should be two and a half, but I'll round up.
While the story and acting were both very well done, making the entire game a constant jump puzzle started wearing thin for me, and the contact physics on said puzzles were often frustrating. The combat was improved over the first game but none of the fights felt noteworthy, even though some were very cinematic. In short, the gameplay felt very lackluster, and got in the way of the story a great deal.