yeah, part 2 is loads better than part 1. there's no point in discussing whether the plot was better since LOL ANIMU -- it's not there to win awards. the ties into ROOTS were nice, though.
i finished with everyone at 100, all lost weapons and 5-star kit. the third awakening was stupidly overpowered, and once i got over the flashy effects, i dropped back to using the beast awakening. haseo's flick reaper skills are JAWESOME, and combat got a LOT more interesting with the new cancels and move+charge as well as the socket upgrades that allowed for fast charge and reduced rengeki requirements. only downer was that one of the better party members (and the only dual blade), alkaid, isn't available for half of the game. antares is cool, but i could really live without sakubo and endrance
spoiler (click to show/hide)
lol he's elk
. overall, i really grooved on the upgraded battle system and spent a LOT of time minmaxing the fuck out of haseo -- i pretty much solo'd the second incarnation of the one sin with him.