by that you mean, every dungeon/cave you enter... you KNOW you've got to go thru every room etc etc... it's very difficult to go wrong really though i find, and apart from obvious bits in the story its pretty obvious how the games going to unfold...
but it's that ...leveling up... getting a new piece of kick *** equipment etc... that makes u wanna go further and further, i finised it, playing only a couple of hours a nite in a week though..and im about a week also, im well into the last chapter of SOU.