My thoughts
It is clear that Schwab has taken inspiration from one of my all-time favorite movies, The Age of Adaline. Everything from the vibe to the atmosphere to the name of our protagonist reminded me of that movie. However, this book is not a mere copy of the film. It has many important differences that make it unique and original. For example, the book explores the dark side of immortality and the consequences of making a deal with a mysterious and malevolent god.

In my opinion, this is V.E. Schwab’s best work in terms of writing. The last book I read of hers was A Darker Shade of Magic, which I did not enjoy at all. In this book, her prose is beautiful and atmospheric. She creates an enchanting and complex world that is both full of wonder and horror. 

One of the aspects that I enjoyed the most was how the book jumps back and forth different time periods. Through this technique, we witness the centuries-long journey of our main character and gradually discover the true extend of her curse. We see her struggle to survive in a world that can’t remember her and how she adapts to a world that is constantly changing. We see her braving the daily drudgery of finding a shelter for the night, knowing that renting a place is impossible when nobody can remember her. We watch with sorrow as she resorts to selling her body for some coins. We witness her surviving through wars. We feel her pain and emptiness growing as we reach the present time.

The book is also rich in historical details and references that make the story more immersive and authentic.

The book really gets you thinking about reliance and patience. When you have so much time and nobody to spend it with what will you do? Will it drive you crazy? Will it make you give up? A well written and thought provoking book, in my opinion.

The Juxtaposition between our two main characters is wynorrfic. Henry wants to be seen and loved, while addies wants freedom and adventure.  They both pay a price: Henry by losing his agency and authenticity and Addie by losing her identity and visibility. Addie cannot be remembered and Henry cannot be forgotten. 

However, the book is not without flaws. 
It suffers from a bloated plot that loses momentum in the middle, where it could have been trimmed and sharpened.
The book overloads on sex scenes and romantic sub-plots, which only remind us of Addie’s inability to form lasting relationships. They are excessive and unnecessary. The book also lacks a clear antagonist or conflict, as Addie's curse is more of a hindrance than a threat. The book squanders many opportunities to explore different and intriguing scenarios, but instead settles for the predictable. I wish the author had explored Addie’s struggle during a war more deeply, as well as her feelings after prostituting herself to a stranger.
She lived for centuries but never thought about traveling the world or settling somewhere outside Paris. There was an opportunity to explore Stockholm syndrome, because what was Addie if not a prisoner of darkness?

The book also tries too hard to be inclusive, to the point where it becomes cringe-worthy. The book seems to imply that everyone is either bisexual or gay, and that there is no discrimination or prejudice in the world. The book could have been more realistic and nuanced, without sacrificing its representation and diversity.

Despite the shortcomings, I am pleasantly surprised by the writing and thoroughly enjoyed the book. It is definitely better than what the reviews suggest.