The last five hours or so of the game was pretty bad. I actually started to skip cutscenes. I wanted to do it earlier, but I rarely do it in rpgs. Oh, you don't want to kill the guy responsible for killing your girlfriend, oh wait, I mean making her into a horrible human-robot? Everyone should live in peace, love & peace!
They just took that story element so far that I started to become really annoyed, until I could take it no more. I mean in Dragon Quest everyone is all happy. But they don't go on for several hours being emo and starting to doubt themselves and thinking they should not kill the #&/% that killed thousands of their people. I don't think even Final Fnatasy XIII annoyed me this much with Hope and the whole whining about being strong
Anyway, it just feels so much worse, since the first 20-25 hours of the game were really awesome.