After 18 hours, I finally finished Middle-Earth: Shadow of Mordor, 100%. I don't think I ever played a game non-stop like this before. I just couldn't put it down. There are some minor flaws, overall it's wonderful. But I think in the end this game accomplished what it set out to do. Great job Monolith, you got yourself a winner here. I'm very satisfied with this game.
18 hours and 100% achievements, I read the devs said the game would last around 30/35 hours lol.