I'm also starting to really dislike the battle system, the little control I have over whats going on is almost lost in the frantic pace of the battles and the constantly spinning camera.
The system is great during those fights that are long enough to actually control the flow of battle, the ones where you have to switch often to battle as efficiently as possible. Sadly, this means the battle system only gets to shine during boss battle and every other battle is kinda meh.
Oh, and it helps if you stop paying attention to whatever fancy shit the characters are doing and focus on the numbers and gauges.
(The battle camera in XIII isn't even the worst by the way. In XIII-2 it's like it's having a seizure and plans on sharing it with you.)
The game is incredibly streamlined. Two stats, two equipment slots and some very linear maps and story progression. However, if I ware to treat it as its own game. Not an FF title, not even a jRPG but an experiment, it's not half bad.
I think that's the right attitude. I went in without any noteworthy expectations (I don't strong nostalgic feelings towards the Final Fantasy series) and had a good time.