I thought it was really good. I thought the fact that it ended with combat rather than a really good platforming puzzle was disappointing, not to mention the sudden brick wall of combat difficulty about five hours in (Right after you snipe the van). The brick wall which caused me to just shoot my way through the enemies, which is much less fun than the hand to gun combat that was feasible earlier in the game.
And the fact that it was disappointingly short.
But either way. Good shit.
Question though, are the time trials fun? I haven't even looked that them yet.