FF always have mixed reviews and opinions. This why the series are so great, every game is pretty different from the others, pretty different from many western franchises that are always the same with improvments(EA,Ubisoft and Activison mainly) or sport games that are always exactly the same with some better looking.
But FF plots never were about deepness or complexity, they are simple and shallow plots(sometimes silly) but beatiful. This what i'm looking for XIII, a beatiful game plot, not a deep plot.