It's hard to let this series go. I read this book slowly, savoring every bit of the 660+ pages. Sure, some parts were a little slow, as this book gives what the title promises, but none of it was bad. Victoria Aveyard is a master of character development and even through the slower parts and the back to back battles, we get fantastic glimpses of characters and their inner workings. I didn't expect to, but I absolutely fell in love with Evangeline Samos. Iris Cygnet was the weakest of the POV characters, in my opinion. I wouldn't be surprised to see some sort of spin-off series with her in the future, as there is a lot of unexplored territory with the Lakelands.
The ending wasn't perfect, but I felt like there couldn't be a perfect ending after everything Mare went through. It's open ended enough to let the reader decide what happens next, and for dystopias, I think that's the best way to go.

Farewell, Red Queen! It's been an amazing ride.