I have very mixed feelings about this book. I think they're largely positive, albeit from a few different directions.

Some disjointed thoughts:
- The writing was enjoyable, although it used the "I'll throw in a word or two in the language the characters are supposed to be speaking so you remember where we are" trope way too often and in ways that felt obnoxious.
- I enjoyed the love of literature and science that permeated the book.
- The framing of the story (opening with and returning to the climax) didn't sit right with me either.
- I did like the middle sections of the book quite a lot because it felt so new. Everything between Werner's first discoveries of radios to when he gets enlisted was fresh and fascinating. Marie-Laure's chapters during that time were not as fresh but also enjoyable.
- While the last quarter had some moving moments, they felt... Odd. I'm not sure how much of this comes from a sense of the ending being too "Hollywood" or how much I'm contrasting with other works of WWII literature I've read or how much of this is my innate struggle of sympathizing with "the good Germans" - probably a mix of all of the above.

All in all, I didn't dislike the book and I don't regret reading it but I wouldn't recommend it widely, and it definitely wouldn't be my first choice of a recommended WWII novel.