It seems that all I ever read these days is Jonathan Lethem and bizarro authors like Carlton Mellick III. The bizarro guys are pretty good and fun to read in a freaky surreal-ish kind of way, but they aren't master craftsmen of the written word. Lethem is. Gun, with Occasional Music is his first book, but probably the 7th I have read. After getting used to the style of his recent work I can really tell how strong his writing has become. He is an excellent author. Even with his first book, you can tell he is an excellent author. But he has definitely improved over time.
PROS: 1) If you like classic crime noir and weird science-fiction, you'll love this book. It is a mixture of those two. Basically, it is just your usual old time crime novel set in a future of mutants and intelligent anthropomorphic animals 2) The mystery unfolds quite nicely. Not only the mystery of the plot, but also the mystery surrounding this odd world Lethem has created. 3) Once you get into it you won't be able to put it down.
CONS: 1) While the writing is good, it is still pretty mediocre in comparison to any of his other works. 2) It was originally published by a sci-fi genre publisher, so it feels like run-of-the-mill genre fiction. So if you are a fan of the literary elements of Lethem's work more than the sci-fi elements you might be disappointed. 3) Though it was intentional, the characters are pretty cliche to that of classic detective stories. This might be a good thing or bad thing. Since I am not a fan of detective fiction, it was more of a con for me.
Overall, I give this book 4 stars. It is definitely worth reading. It's just not as good as most of Lethem's other work. I might have enjoyed it a bit better than As She Climbed Across The Table, but it wasn't as unique and smart as that book. Casual readers might like this one best, so start with here if you don't read a lot of literary fiction. Otherwise, start with Girl in Landscape or Motherless Brooklyn.