I'm pretty delighted by the style of this game. When it was originally announced as some vague thing that could exist, I was uncaring, but now I'm digging it and can't wait to get some HD-Atlus-loving on my WiiU.
Btw, the character designs are by "toi8," who also worked on Chain Chronicle. I recognized the style in the beginning of the trailer, but had a tough time remembering what it was from.