Sadly it does get a little repetitive after awhile. As long as your doing the quests and story you should be fine, but once those start to run out it buying houses and killing things over and over.
Ah for some reason it said Fable II sorry about that! But on the game I will say that Multilplayer is pretty good, the story does get repetitive very fast since all missions are just go here and do that.
The missions do get kind of repetitive, but even after beating the game I still enjoy just driving around and randomly killing people. So at least that says something.