I absolutely adore Madeline Miller's writing. Something about it I find so calming, even though her books are actually anything but. As such, I really enjoyed reading Circe, it was easy to pick up and easy to keep reading.
I wasn't at all familiar with the story of Circe prior to picking this up, and I really enjoyed hearing a somewhat less often told story from Greek mythology. Circe is the story of a lesser Titan who, although she did not inherit any of her family's godly traits, she does have witchcraft. Exiled to Aiaia, she learns to use her powers and builds herself a life there. 
I really enjoyed seeing her perspective as a god who is shunned for being unlike other gods. I enjoyed watching her grow into her power, both her witchcraft and her power as a woman who stands against the world. Circe was a woman who made choices out of love where possible, but was not weak and did not easily give herself up to others.
Overall, Circe is a powerful story about women choosing their own path, despite the difficulties they may face.