This was fine. I'm not terribly familiar with Greek mythology - I was likely assigned Homer in high school, but don't think I ever actually read beyond the Spark Notes synopses. I'm generally familiar with some of the bigger gods, as well as some of the more famous stories around the Trojan War, but that's about it. My understanding is that Miller has chosen Circe, something of a bit player in the larger tableau of the mythology, and built out a proper biography for her. Unfortunately for me, I have no real understanding of what is canonical and what Miller's additions were - which I assume lead to a lack of appreciation.
Regardless, the prose in the book was delightful. Miller's language was detailed and evoked the style of Greek poetry without losing me with run on sentences. The book was very enjoyable, but I don't suspect I'll remember too much. Even now, a few weeks later, large pieces already seem to be missing.