I have a lot of thoughts about this book, so buckle up if you're planning to read this whole review.

Let's start with the good:
I LOVE the cover. Probably one of my favorites, maybe of all time. The art is beautiful and creepy, and perfectly encapsulates the story.
I was really impressed with the horror elements of this book. The demon was gross and I was definitely left feeling unsettled and uncomfortable. As someone who used to stream on Twitch and has a love for video games, a lot of the creepiness kind of hit home for me.
Ash and Viv's relationship was also really cute. I thought they had great chemistry and I was rooting for them to get together.

The bad:

I have a lot of issues with the entire storyline involving Riley's death. From the very beginning, Viv blames herself for killing her little sister. And when you finish the book, you realize the entire story is kind of about grief and guilt. But when it was revealed that Riley died from drowning, and Viv also covered it up by making it look like she choked on a button (from their mom's cardigan btw), I felt that maybe it was not portrayed as seriously as it should have been. Obviously Viv did not kill her little sister on purpose, but there is a very big difference between an accident and being downright neglectful. Viv was being neglectful by leaving a full tub of water accessible to a 3 year old while she went to stream on Twitch, and then she covered it up with something that would put the blame on her mom. As a parent to a toddler, I realize I may be more sensitive to this topic, but I also felt that it was treated more like she accidentally burned dinner and covered it up instead of literally killing her sister.
The confession to Viv's parents at the end about the truth of Riley's death also rubbed me the wrong way. Her mom's first words after hearing the truth were quite literally "Oh my god...It wasn't my button." To me, that is not what my first thought would've been 3 months after my 3 year old child died. I would've been furious and heartbroken, and not even close to calm toward my 17 year old daughter who not only killed her with her neglectfulness, but then made a conscious decision to cover it up.