So. A lot of SFF I've read in the past tends to get bogged down in trying to juggle presenting its worldbuilding versus presenting the plot and characters, and will often wind up leaning more heavily towards one at the expense of the other. Wonders of Mundus, on the other hand, does a really fantastic job of balancing the two by having its conflicts arise organically out of the consequences of its worldbuilding, and introducing the characters to them as they become relevant.
Someone else described the series as being driven by the question "where does the food come from?" and I have to agree - much thought has been put into the underpinnings of trade and commerce that govern this world, and the demands of the supply chain inform the trouble that arises for our protagonists. This serves to get the reader invested in the world in a way that breathes life into things by way of its familiarity, without all the dryness of a lesser fantasy novel's lore dumps.
(And of course, the loving descriptions of delicious-sounding food is a bonus, too.)