Just beat it. Must've been a little over 9 hours for me.
Heck of a game, although I feel that the second one is the "Empire Strikes Back" of this trilogy, if you will. Better than the first, but doesn't quite reach the heights of the second, imo. Gets close on multiple occasions, though.
The ending was interesting; not certain if I feel satisfied quite yet or not, but the more I ponder over it, the more it fits together quite nicely.
I still rrrrrreeeeaaaallllly want them to keep that epilogue in mind, though. Stig said that, should they decide to work on it, it'd be a free DLC package. I would be all over that.