This is a very serviceable (ha ha) stand-alone novel. Tchaikovsky is very good at main characters, and this is no exception, but it might take some effort to see that. Charles the robot valet is designed to derive satisfaction from ticking off his assigned tasks, and is "conscious" of this. I put it in quotes because it's hard to say that Charles thinks of himself as conscious (see how hard this is? How does a robot that explicitly denies that it has consciousness and free will demonstrate it?). This tension becomes a core of the book as Charles has to leave his manor job and become Uncharles, in search of employment. The plot is a pretty standard robot rebellion with hero's journey, but that tension between Uncharles's developing consciousness and explicit denial that this is happening makes it interesting. Tchaikovsky is an ambitious writer and wants to take on big questions. He is also a prolific writer, and these two drives sometimes interfere with each other. Service Model is a really interesting read and wrestles with the biggest question of all, but in the end he needed to finish the book and get on to the next project.
