Well, I can say that it was a decent game. The plot didn't really do anything for me, and it got corny, but the characterization wasn't bad. It also had plenty of extra stuff to do, and it took me 125 hours to finish. (I prefer long games.) I liked the whole Capacity Core and AD Skill thing, and taking advantage of a fonon field is kind of fun. The battle system was acceptable, but, again, I didn't care much about the camera. (I wish they'd add an option to make the distance fixed, so I can see most of the field.)
The funny thing is that I stuck with the game primarily because of Natalia, even though I didn't care much about her character. I really enjoyed using her weapon in battle, a bow, even though there weren't much in the way of arte attacks. Still, it was a challenge to use it against a number of enemies (small, moderately-mobile, high-flying, and especially any combination of those in a single enemy), but her range often helps to move the camera back so I can see more of the field. And she also has some healing skills, which come in handy when the de facto healer is preoccupied or unable to cover everyone. (Which I found interesting, since I'm the type that finds the job of a healer boring. But it was more of an auxiliary role, rather than a dependent one, so it didn't become boring. It was fun to juggle fighting with a bow and providing recovery.)
I'm contemplating playing the game a second time, but I don't know if I'd be able to make it before Natalia joins. XD;;