Since this is the import review, RPGFan can say that the voice work is quite good, the writing, while not exactly Asimov, is adequate, the characters are a lot of fun, and the theme is no better or worse than what you get in a typical Shonen anime. The real dilemma was comparing the game to SO3. From a gameplay perspective, it is basically a wash. RPGFan liked SO3's cancel combos, item creation, strategic defense system through fury, skill mechanic, and cooler killer moves, while SO4's BEAT system, blindsides, and rush combos put its combat slightly ahead.
Still, SO3 has better characters, an audacious plot twist that has grown on them, better music, a more satisfying post-game, full-active mode, variable costumes, and two-player versus to boot. SO4 looks nicer. While SO4 does not have too much serious competition so far among seventh generation RPGs, time will tell if it can stand up to the likes of a new Shin Megami Tensei, Final Fantasy XIII, an improved Last Remnant on PS3, or the next big WRPG like Mass Effect 2.