A likely purchase for people unsatisfied with a regula version.
Having Kingdom Hearts II: Final Mix+, the lack of a previous Final Mix started to bother me, so I clicked on this site again and got the game for I was not satisfied with the regular version. Yes, this came at a cost that I haven't acknowledged all Katakana or even Hiragana yet. But so far, so good.
While it may look like your regular Kingdom Hearts 1, this rose hides extra combat abilities, a possibility to skip those annoying scenes, six new weapons, a new, harder difficulty level, a couple new heartlesses and a new boss battle. All that and what you got back in 2003. This is THE Kingdom Hearts 1, the true vision of Sora's very first journey.
This game doesn't outclass your regular Kingdom Hearts 1 by miles, but the superiority is there. There's more content and that is what makes this game better.
I like all that little stuff that tweaks the game in the better direction.
As a Kingdom Hearts fan I want to get the most out of the series and if that is what you are striving for too, then Kingdom Hearts Final Mix is without a doubt on your wanted-list.