There is a story in FFXIII. A confusing story.
I agree that there is a 'story', but only a 'plot' of convenience, the whole thing makes no sense whatsoever, the Characters motivations are contrived, hell the whole bloody story is contrived, nothing feels real, it's just random pseudo-story monologues on top of pretty (yet somehow generic) scenery, take the massive action scene when you leave pulse, there is a ton of action on screen, but no excitement, I wasn't worried about the 'Characters' because they had no character to speak of.
It was ok at first, especially the branchiness helped make progress more interesting earlier in the game. It took a down turn somewhere in the middle, and a nosedive towards the end.
When I first started the game, I thought it might be good, after the tenth corridor, I knew the game was rubbish, even pulse, which could of added so much to the game, it seemed like the characters go there for no reason, I mean, nothing ever happens there, what was the point of going there?
The combat and Gran Pulse is what redeemed the game later. Although at first, the combat system was an automatic "one-click" ordeal.
The combat system basically amounts to Attack and Defend.
When under attack press Defend
When not under attack press Attack
They are just dressed under pretty names like Tri-Disaster and Combat Clinic, and change mode is called 'paradigm shift'
As for the graphics, it's par for the course for me until Chapter 11 cut-scene, which was triumphed by Chapter 12 cut-scene. Then again, I didn't notice any god ray in the game while people like nightshade could see 'em.
While the graphics were definitely pretty, I felt Like it was Generic SquareEnix 101, or like they used so much 'Shiny' and 'prettiness' that it ended up feeling like the star wars prequels i.e. so many special effects, that they are not special anymore