That was my Halloween read this year. I agree with you on the imagery, particularly the scene with the >!rabbit dissection!<. It was a fun expansion on Poe's short story. I did get a little annoyed at the author's habit of using modern sounding turns of phrase in the dialog, but mostly I enjoyed it.

The author has a couple of other horror books out that you might want to try if you haven't yet: The Twisted Ones and The Hollow Places. You would probably like Silvia Moreno-Garcia's Mexican Gothic too, if you haven't read that.