I have such mixed feelings about this one.
First off, I really enjoyed the murder and horror. A serial killer who does what the FMC does?
It was disgusting and bloody and perfection.
On the other hand the way the FMC is described and talks just annoyed the fuck out of me. It's like the author was trying so hard to make her this alt-cool, patriarchy hating witchy goth and using so many stereotypes to do so.