Hearts, Keys, and Puppetry

Felt oddly young, it felt it would have been better as a visual story, but only marginally so.
I'm having a hard time figuring out why I was disappointed; was it the pacing, or perhaps it felt like a mixture of cliches or just too predictable? Was it the reader?

Or maybe just myself in that I expected more from something that had ‘Neil Gaiman' on it.