I finally managed to get the controller back from my daughter's hand... at 9pm. Playing KH3 feels like coming back home after a long stay away. I strongly recommend if you haven't played the previous episodes or if you forgot them to read one of the many summaries that can be found online, otherwise none of the story or the many cut-scenes will make any kind of sense to you.
So far I got everything I was hoping for, a KH that doesn't reinvent the wheel and that relies on the same gameplay that it has since the beginning.
They've put much more money on the table, the game looks like a real next gen one, gorgeous graphics, much bigger environments, awesome sound track, and this still unique character crossover that blend so amazingly well that it feels they've always been together.
One small complaint (actually the same only issue I have with RE2), the characters completely lack facial expression, and their eyes don't have any expression. The "acting" is very old style too, one character speaks, pause 2 seconds, then the next one speaks, another 2 seconds pause, then the discussion continues, and so on. It's a common issue with japanese productions, they still rely on game designers, instead of hiring people from the movie industry like US productions do to bring more dynamic. It doesn't bother me more than that, but the more it goes and the more visible the gap between game development schools starts to be visible.
Anyways, KH3 is an absolute must, go for it !