The concept in this story was very good, and I found myself hooked from the start. The hard-boiled detective language was amusing but appropriate. The writing was solid, and the narrator easy to relate to.
Since this 'book' is either a long short story or a short novella, events move very rapidly, and the character development is limited. These aren't bad things, obviously, but I was left wanting more. The part I disliked the most was that the plot was so straightforward and predictable that I knew midway through how things would turn out.
Although this is a fun, action-packed story, it offers no surprises.