I thought it was quite funny and thoroughly enjoyable. Don't get me wrong, there were a few shaky parts.
Its worth seeing in theaters if you can appreciate grand hyper-detailed animation.... which you'd best appreciate.
too warm-hearted? The tone wasn't like Kiki's or Totoro, but no it wasn't Mononoke.... I think it matched Spirited Away. It wasn't saccharine. Come to think of it Love was overstated again. annoying.
I wonder if the spoiler tag still works?