I just saw the first trailer for this on Tor.com this afternoon, and IMO it looks like it could be fun.
Yeah, they went the right direction making it a comedy. I agree that it looks fun. I'll go so far as "feel good" romantic comedy.
I read the book last year and thought it was a really unique, fun twist on the zombie story. It had the same kind of sweet and funny vibe as Shaun of the Dead, and you really found yourself caring about this sad, lonely zombie guy. Naturally the movie made him a bit younger and "Twilight-ier" than I imagined him, but otherwise it seems to capture the feel of the book really well.