It's probably a 5 star novel. I enjoyed it very much, just not quite as much as the Your Face Tomorrow trilogy, or All Souls or Dark Back of Time. And I found it a little bit irritating, the way he kept using the phrase "dark back of time," in this novel. I know that he is always a bit self-referential, but it just seemed gratuitious here. So I love it, and would recommend it, just not as much as the others.