This was a painful read, but Automata's really traumatic for me, even if it's still my favorite game. It was the last of the books I had left to read and I was lucky to read it after pretty much every other material had been released, including all the crossovers with other games and the special content in the Replicant remake and Re[in]carnation, thus it was the perfect closure when I already had all the additional info about what really happened. Maybe because of that, I really enjoyed it. I didn't feel, like other reviewers, that it was too short or that too much was left out, because I didn't expect a detailed novelization of the game, I already got the platinum there, meaning I played over 200 hours and did everything that could be done in the Automata universe, what I wanted, and the book provided, was a deeper view into some characters or events in the game. Obviously, the side quests were left out and even important characters, like Emil (Ouch!), but I understand it was necessary. Instead we got to see a bit into the reasoning of Adam, Eve and, of course, 9S, 2B and A2, besides the Pods. And even with all the info I already had, it was heart wrenching.
Things to consider: I assume if you're interested in reading this you obviously played the game, otherwise it's pointless and you won't even understand what's going on. It doesn't replace the game, it adds to it. In fact, in this novel there are some parts that refer to the other Automata books, things that weren't in the game, so you should have read the other books too before grabbing this one. I was lucky and just did it in that order without knowing it was supposed to be that way.
I loved it and it made me cry (once more!) and the few typos (yes, there were some), didn't even bother me much. I think Eishima did a great work with this one, she included just what was necessary to add even more depth to the story of the game without being too repetitive. A must for any fan of Automata, the Nier games or YT.
Now I think I'll need to play the game again because I bet it must be a really different experience playing it from scratch knowing all there's to know upfront. Every line must have such a different meaning... But well, after Elden Ring.