got all the trophies in the game now.
The battle system is definitely weak compared to previous FF games, me beating the adamanatoise (super post game boss) simply involved me holding down the warp attack button repeatedly, took ages but that was it really.
Pitloss post game dungeon is brilliant tho, well designed, its basically like a 3d platformer, no enemies, just have to navigate through a dungeon with traps, small ledges etc. Note you cannot save or fast travel out of dungeons, so basically once you in you need to get yourself out also.