I don't feel comfortable rating it, so I will skip that part.
Yeats is undoubtably a brilliant writer, which is why his belief in eugenics is all the more painful and distressing. The first third was clearer on the topic, so it was worse to read, the middle was okay-ish, but it definitely was aided by my tired inattention and Purgatory... God dammit Yeats. That just plunges straight back into ideas of degeneration. Despicable.