Love the game. Took me a while to find the werewolf and how to kill the vampire (I had essential item used to progress the story, but not the other), but not having it laid out for you so neatly is perfect.
Metaphorically, with some games the puzzle is completely finished before you start and its just a linear boring experience. Other games just have a pile of jigsaw pieces in a mound and leave you with nothing to go on. This was a puzzle with edges already built and the pieces arranged into color piles, the perfect way to do a puzzle.
The only thing I wish the game had was the ability to call one character to the other characters location. Its quite tedious when for example the Hector is in the Crypt and the Dave is in the Library. But that's just me being an impaitent ADHD ridden nitpicker.