I enjoyed these stories a lot. Most were short, and it could be argued that they were simple ... but there's a difference between straightforward and simple. I loved how each story led into the next, connected by associations between the female characters. I loved how some stories were mostly reversals - the witch is actually the victim, the heroine actually the villain - but most of the stories weren't. They weren't merely the inverse of the well-known fairy tales; they were retellings. Most of the witches are still frightening, most of the princesses still beautiful, but they are so much more than those stereotypical fairy tale archetypes. These are complex female characters that love and hate and want and fear and fight, sometimes with and sometimes against each other. 
 The moral of these stories is that fairy tales aren't isolated stories drifting in nothingness. The witch ended up in the cave somehow, and the reason the princess is locked in the tower may not be the reason you think it'll be.