As someone who went into it with great expectations based on threads like these, I'll add my contrary opinion: it was a pretty disappointing read. The story is pretty lukewarm and doesn't particularly drag your interest into it, which would be fine if the point was the philosophical/metaphysical underpinnings were the point - but unfortunately those are pretty weak and superficial as well. Overall it felt like a half-baked mediocre work by a talented author.