Personally I'm quite liking this game and the 3DS counterpart. Yes, both are flawed in some respects, still I'm enjoying them both. The review scores are baffling to me. I suspect if it had been an exclusive to one console it would have been much improved. Perhaps the dev team got spread too thin. It's certainly a try before you buy type game, but certainly worth a look. It didn't help that many reviewers seemed to play the PS360 version and I doubt there are many Mickey fans in that crowd.
It didn't help that the initial artwork for Epic Mickey was so promising and the finished product was quite different.
I'm pretty sure in ten years or so we'll be seeing articles about how EM was an important part of some game journalists
initial exposure to games and how wonderful it was to play.