The book is eerie as hell. I can't remember reading a book, which has given me so much creepy vibes. Not exaggerating but the writing was actually compelling enough to evoke the descriptions it want to convey.
It's intense and it keeps me in my toes. I love it!
EDIT: While I liked how the story was built from the start, the mid to end course of the story had been pretty much okay. I feel like the story could have used tangibility as to what and where Other Mommy came from. Nevertheless, still a decent read.