I've enjoyed a lot of what I have seen in the leaks. My only real problem is that
In the scenes where Terra and Roxas are saved, Sora just feels like he's there as a cheer leader.
Also...some voice acting complaints.
Everyone, but Axel, Xemnas, Saix, Xion, Roxas and I imagine a few others that I haven't seen turn in pretty bad performances.
Their problems all range from odd pacing issues, lack of genuine emotion (or context), lacking in energy, have really disjointed choices in their acting or in the case of Osment as Sora, fighting his voice the whole way through. Even Donald and Goofy, who have performed for YEARS, don't sell it either. All the dramatic emotional scenes so far but Roxas, Xion and Axel's reunion fall flat. Aqua sounds worse. Even Ventus doesn't quite sell emotional scenes either.
And it's crazy what 9 years has done to both Haley Joel Osment and Jesse McCartney. With McCartney, he's just a little deeper, but he at least still fits his characters. Osment, though...he can't be Sora. His reads with Vanitas are great, but his voice is now even older.
It's a shame, because these cutscenes are so much more emotive and dynamic. Good voice acting would really elevate these. I really think they should change voice directors that can at least talk to the Japanese directors.