I'm looking forward to reading this module, and certainly raiding it for a wee trip to Chult expedition for my campaign, but none of my groups displayed any great interest for "zombies and dinosaurs in an Indiana Jones jungle crawl", to my great confusion, so it seems unlikely I'll run it in its entirety.
Saying that, Out of the Abyss was a fun read and thus I'm happy with my purchase, even though I'm fairly sure that I'll never run that as a whole.
They seem to be refining their campaign concepts as time goes on. Tyranny of Dragons isn't all that thematically tight - other than DRAGONS! - nor is Princes of the Apocalypse. However, Out of the Abyss, Curse of Strahd, and now this all seem much more focused on providing a cohesive experience that brings its own tone and style to the game, rather than just a pleasantly themed set of dungeons. I think that really helps to sell the package.
Lastly: I always thought of it as Acerak, and it constantly surprises me to find that there is a rogue ce lurking in the actual name. This adventure is likely to have many more difficult to pronounce names...