The amount of people that watch the HD 1.5 movie instead of playing this is criminal, the story lends itself way better to the days system instead of just watching 3 hours worth of cutscenes.
Gameplay is fun I never had any real problems with it aside from a few annoying bosses
I think the panel system is really neat, its something they never really touched again in KH and I think it worked really well here.
The story is brilliant, whether you play it before KH2 (like me) or after it connects to that and COMs stories amazingly, and the main trio of characters are so lovable its insane. They also give each organization member a real chance to shine here (aside from the ones involved with COM) and in general help to flesh them and the organization out as a whole. The story is so clearly formatted around the days system which is mainly why I think this is so superior to the movie, the way you experience the story here just makes so much more sense and the pacing feels way more natural. Also it has Vector to the Heavens and Roxas is a top 2 character in all fiction
play this instead of watching the HD 1.5 movie please god