I'm on the the Hunchback of Notre Dome world, and it's safe to say I'm loving how different of a feel it has from other games. Flowmotion does take some getting used to, and it's going to take me a while to understand some of the mechanics of the game, but so far I'm loving it.
PROS:
1) In previous games, when you walk away from a field fight and the enemy disappears, its health regenerates when you return to the area it was in. But, in 3D, its health stays the same.
2) The Dream Eaters are more useful than Donald and Goofy ever were.
3) The worlds are GINORMOUS. Probably the biggest areas I've seen in the series.
CONS:
1) Even though I've played all of the games, the story is pretty hard to follow. The Story section in Reports helps this issue though.
2) In BBS, each character had different boss battles. I thought that was the same case with 3D, but when Sora and Riku both had the same boss battles, I was sort of disappointed. It did help that each version of their boss had different moves.
Back to enjoying my game