The games have some redeeming value, like they have OK gameplay mechanics (the first one anyways), but other then that the games are just terrible. I had half of the second game on mute volume since I couldn't take any more of the cutscenes' outright handicappedness in trying to expand the story in any way that didn't make me want to smash my head with a sledgehammer. I wish I had done that in the first game as well, maybe it would have saved a few thousand brain cells.
The game has a similar fan cult following as FF7 for similarly wrong reasons, primarily the Story and "Philosophy". All in all neither of these games made any sense throughout and after, since they were completely illogical and tried to shroud everything in their equally illogical philosophical bullstuff. Usually bad stories stem when the games make no sense to begin with and the producers are too lazy to tie anything together.
Then again maybe I'm a bit too hard on these games since I was spoiled on games like FF4 (2 in US), which pretty much set the basic standard for good fairytale RPG stories in games, and also Xenogears which I still haven't found any other games to even come close to it storyline-wise.
Honestly if they had made KH a series of horror games they would have been terrifying, since understanding what's going on in horror stories is paramount to survival.