This was the best Era 2 book so far. As I have said in my previous Era 2 reviews, I loved the character arcs and the dynamics between them. While Wax and Wayne were great as usual, Marasi and Steris shined in this book also.
What I especially loved were the different areas that were explored. The first two books primarily take place in Elendel and the rest of Scadrial wasn't really important. Well, if you wanted to see more of the different cities, you will get that here. 

The southern tribe and Allik were great as well.

However, I think the main reason for this getting such a high rating is the Sanderlanche because it is crazy. It just goes absolutely bonkers.
So yeah, this was great.