Wow. Read it in one go last night - partly because I'm full of cold and couldn't sleep and partly because I got sucked in to the book.
It's been a while since I've read something that gripped me and I found it very scary in parts.
Loved the premis. Loved the male counterpart (remeniscent of a Peterson type character) and did enjoy the book as a whole.
Only one bit I didn't really love and won't mention it because spoilers!