I was sold on the promise of this book as a Black Mirror-esque story, and I think it delivered on that. The last few chapters especially brought a nice creep factor. But the most fun, creepy sci-fi parts were at the very beginning and very end of the book, and it felt like a bit of a slog through the middle. The story is a little Frankenstein-ish, and I wish the main character had felt and expressed more of the moral dilemma than she admits to. Instead, she does a lot of navel-gazing about her marriage and relationships, and near the end especially, it felt like rehashing what we'd been over while something so much more interesting was happening.
On a personal note, as a huge fan of audiobooks, I think listening to the audio negatively impacted my experience of this one. The narrator has a sort of detached, pessimistic tone that made it feel like the main character was unhappy about having to tell me her story.