I ran into this storyline while trying to find something to continue a campaign post-Dead in Thay. Running the first adventure as a lead-in to the the continent of Chult, continuing with Tomb of Annihilation, and then having that lead into the rest of this campaign felt super natural and really made Chult the heart of so much of our story. (After this book, we moved onto the Adventurer League Broken Chains series, which was great for exploring the Ubtao/Dendar dynamic even more) If you ever read the 90s Forgotten Realms book "The Ring of Winter" and loved that depiction of Chult, this book is definitely one to look into.
On top of the writing quality, the physical copy of the book looks great! It has a place of honor on my bookshelf.