Keyboard for chat is a must. But the rest the controller experience is great(and I hope other RPGs that get ported to consoles steal it). You don't need to target party members on screen just up/down on dpad to select them in the party list(X to confirm if you want to switch instead of "mouseover"), once you have aggro on mobs you can cycle through them with l1+up/down on dpad(X to confirm), you can go left right on dpad to cycle through targets on screen(and hit X to confirm your target) and you also have tab targeting with r2+l1 or l2+r1.

Beyond that I use vertical bars usually half full to show me CDs that are on the second crossbar - or that I want to see at a glance. There is more than a year old post with some very good ideas for controller users(like turn off auto sheathe weapons and have shared and non shared crossbars so you can have common things on shared and class/job specific actions on non-shared.