Now that I think about it, while the combat itself isn't interesting, a lot of things involving the combat itself is really interesting. You have to decide which party members you want (although I found myself always going with Tabasa and Gardenia before switching to Tabasa, Dogma, and Mierelle.) The type-2 weapons allow for some very powerful moves, but most of the time they give a huge debuff. Except for the throwing knife. Tabasa shredded everything with that. There is clearly a lot of focus on combat with the optional boss fights and the dungeons and all, but that doesn't really add so much when the interesting thing about combat is everything outside of the battles. I have been thinking about fighting the Informant, but he seems more like a "Spam Mega Heal-Al" than a superboss. At least he doesn't seem as bad as Memory Girl. I hated that boss.
I also found some of the battle themes to be too short, which gives me immense amounts of pain because Confront, Depths, Theme Battle, and Sky are really good.
EDIT: I found that the informant has 4350 HP and a lot of defense to go along with it. I'm not fighting him.