I've been a fan of Matt Ruff since Sewer, Gas, & Electric, and I've read all of his novels. They are all very good, and no two are alike. This one is an interesting cross between SG&E and Set This House In Order. It has fantasy elements like the former, but it also has a psychological bent like the latter.

Bad Monkeys is riotously fun ride, with twist after twist after twist. You are never quite sure whether you should be rooting for the protagonist, and it's to Ruff's credit that you do so all the way to the end. The final revelations may not be as satisfying as one might like, but the journey is still well worthwhile.