Reviews have criticized general game controls? There's nothing wrong with them, I mean, it's point the control stick, tap a to jump, tap a to double jump. I'd guess they mean that painting aiming can get wacky, that's the only other element of control I can think of, aside from general camera issues.
For what it's worth, I've finally finished and submitted my review of the game. It isn't pretty. To sum it up, Epic Mickey gets everything right, except for the fact that it's a video game. If you count the parts you have to play, it's pretty terrible, in my opinion, not even mediocre.