The beginning was great and I couldn’t stop comparing it to les mis but later

after the prison escape

it became very long and boring. I kept on listening since the book had good reviews and I had to listen to something when doing my needlework but when it got better it was only for brief moments.
I think it would work better as a series or books (like a revenge a book) rather than this big mess. 
If you like more justice oriented books then les mis would be a better option and if you like personal politics then Jane Austen is much better. 
I personally don’t like when a character is all powerful and the whole second part of the book is just that. I really hoped it would explore the repercussions and psychology of vengence.