As a fairly new DM who runs exclusively in Eberron, this book is a life saver for me. This book expands on so many interesting parts of the world; from the Mror Dwarves to the Daughters of Sora Kell. It even expands greatly on the planes of Eberron and why they are completely unique from the Planes of the Forgotten Realms. If you're a DM who plans to run in Eberron or perhaps looking for inspiration on world building, then I can't reccomend this book enough. Exploring Eberron is a must have supplement for RftLW as both really mesh well together. Thank you to everyone who worked on this book!
[5 of 5 Stars!]