Got my copy today, liking Final Mix! So far, I've had a couple of complaints in terms of sound and graphics, but honestly, I think the camera's fine. At least, I don't have problems with it, other than it being too sensitive. But I can get around that.
Now, graphical, this game looks amazing. Truly amazing. The only downside is f.e. in Traverse Town where the floor switches constantly between sharp textures and not-so sharp textures (this actually gave me a headache). Textures seems to change like this quite often, which is a pity, 'cause the actual graphics look amazing.
Soundwise, I've experienced a lot of music kind of glitching very shortly at times. The music itself is amazing, but stuff like this kicks you out of the experience.
What I've enjoyed most so far, are the Final Mix additions (the new abilities and such). These really make the gameplay feel somewhat fresh to me (as in, different from my previous thousand playthroughs of the original) and are just diddlying beautiful to behold (Stun Impact, that "Drive" finisher). Digging it!
All in all, I agree with the 7/10 given. Can't talk about the other two games just yet, 'cause I'm planning on doing everything in chronological order of the story (as much as possible). So when Sora loses his heart, I'm gonna start watching Days. Should be interesting.
I'm wondering if they'll ever release a patch to solve these problems, even if they're somewhat minor.
One thing I will say, though. For people who think they've got deceived because Days isn't playable (I've seen a thread about it). First of all, you should've been aware of that already by reading the announcements and such, but anyways. For those of you who don't seem to have read these announcements (but apparently are registered here and complain about being "deceived"): on the back of my copy, it clearly says "HD remastered cinematics" on Days. Read.