I beat it yesterday. I won't go into too much detail but,
I thought, it was good. If I were to compare Kingdom Hearts 2 & 3....2 would be the better game in my opinion. For some reason I felt as if parts of 3 were slightly rushed...plus I was expecting there to be more worlds. Disappointing that A Nightmare Before Christmas wasn't included again. But I guess Toy Story kind of filled in it's place.
Another thing that annoyed me was most of the "new worlds" were shown off before release. (Practically all of them were.)
I will say that the combat was pretty great though.
The ending was decent. But you wonder if they'll make another sequel. There wasn't a reveal of what's in that box/chest. They might of hinted at it during that last cut scene after the credits but.
Overall it was a good game. But I just wish they implemented a little more. It would of been nice for the worlds to be more "open world."