Took me 291 hours to complete, though this was with a mod to make the combat turn based, which probably dragged things out a bit. I had to switch this off and drop difficulty down to story mode in for the last half of the final chapter though as it became a little bit tedious to be honest, and I just wanted it to be over. Up to that point it was a good game. If I hadn't sped things up at the end it would have taken another 30-40 hours I reckon. Apparently an update is coming soon which adds a turn based mode officially, but will probably knacker popular mods like the bag-o-tricks mod. This was another reason why I want to blitz through it before this update forced itself on me. So, hopefully you are not playing with any mods on, as you will probably have to restart when the update comes.