The style with which Chapman pulled this book off is incredible. The different voices, points of view, and overall project is a masterclass in bringing a variety of characters alive through voice and showing their characters progress on the page. In too many books, every POV character sounds the same, but Chapman managed to make the different characters utterly different while also making it feel effortless. I also don't want to imply there are too many POVs--honestly, there's just the right amount for exactly what he pulled off. So, again, writing-wise, this book is incredible.
But, all that said...I think a reader's response here is largely going to come down to concept. If you read about the concept--a form of possession taking hold of people as they fall down internet/mass media rabbit holes, and then tearing families apart--and feel like it's a fascinating one you want to fall into, you'll probably love this book. For me personally, I admit that the concept put me off, if anything--I love Chapman's work, so I wanted to read it, but if it had been written by anyone else, I probably would have passed. I read for escapism, and people being changed by internet rabbit holes--however drastically--just felt a little too close to reality right now. In any case, I think because of this, parts of the middle of the book dragged for me, even as I could appreciate what Chapman was doing it and the nuance of the story.
So, would I recommend this? If you're interested in the story concept, or if you're a writer wanting to get a masterclass in writing different characters in POV, this is a fantastic book to pick up. If you're just thinking about trying Chapman for the first time and less sure of the concept, then I might suggest starting with one of his other works...