Some people don't seem to quite get what "produced by" really means. The story and characters have nothing to do with Burton. It began as a short film, he saw it, he liked it, he made a feature-length version possible. Beyond that it's not "by" Tim Burton at all.
It looks really imaginative and cool. I definitely want to see it some day.
Wrist-slittingly depressing? Really? Life goes on in the form of inanimate-object creatures...it's not that sad. I can't see how it would be even moderately depressing, we all know the world can't last forever.