I feel like this game could've been so much better. The art direction in this game is truly magnific, but the other aspects of it just lacks polishing and better comprehension. The story itself is pretty good, with very lightweight on the beginning/half of the game and very heavy/dark mood by the half/endgame. The battle system is just boring, very easy as I had almost no challenge in this game (even on sidequests). Dungeon level designs were not the best as well, as most of the corridors and battles didn't seem to fit the actual battle system the game has.
The story, exploring the game world and the summons were the most fun part of the game, this game has a really wonderful world and the summons are something REALLY, REALLY COOL, it's a shame that we can't choose when to actual summon.