This book was a wild ride, and I enjoyed it a lot. It is character focused, with the plot developing slowly. It really lets you get to know the characters, and they all feel very real. It's refreshing! And the plot continues to build up until it crescendos, a thrilling climax, and then a satisfying deceleration to a satisfying conclusion.

There are ethical quandaries posed, and while some of them are cliche (can an AI be a person?) some of them are more relevant and real (should a person be allowed to let themself die?). I can't say I liked the conclusions the narrative seems to draw in all cases, but the themes of love and friendship were strong and good.

If I could give it 4.5 stars then I would, but I think it deserves to be rounded up to 5.