This is what pinball should be, but unlike most pinball tables that have to fit the subject matter to the gonzo mechanical gravity-powered contrivances of pinball, Adventure Land is already there. Who cares about Star Wars or Skyrim or Spider-Man when you have tables like this!
Both tables in the Pinball FX3: Carnivals and Legends pack offer a moderate challenge that, being offered for free for a limited time, complements well the already free table offered with the game on Switch, Sorcerer's Lair. They indeed both feature a challenge that is a little higher and should serve as a good continuation from the aforementioned free table for people who really got into Pinball FX3 through that one and then felt like dabbling in some more advanced tables, while still being fairly manageable for less skilled players. Son of Zeus might be the more interesting of both with some more crazy ideas, while Adventure Land feels more like a classic, "all mechanical," real life table, but that fits the theme so well for the latter and both offer such different experiences that they complement one another perfectly at the end of the day. They are both well worth the purchase even now that they are not free anymore.