Dearly Departed was a unique zombie story. You don't often get Victorian futuristic zombie stories or 'good vs bad' zombie groups. Due to the strange combinations it may seem like the book wouldn't work. It did. It was interesting. 
 The aspect that brought the enjoyment down was the multiple points of view. There were just too many different ones. Two or even three could have been OK if done well but more than that just takes away from the story.