Disappointing all round. The gameplay is odd conpared to the previous games. Summoning a magical pirate ship or merry-go-round just seemed strange and totally broke up the fighting. The keyblade transformations were fun enough but also a strange edition (doesn't seem to fit the story).
The worst part was the story line. After such anticipation the antagonists literally just appear to talk for a couple of minutes and then disappear again. They don't even seem that sinister. Defeating them is not even satisfying because I don't care about them at all.
KH2 was much better than this.