For a first pack in the New Frontier Pass, Maya & Gran Columbia is not a bad start. It adds a bit more variety in the selection of factions to choose from, which is always ideal, and there are a few new units and mechanics to play with that will keep things a bit more fresh for any Civ VI fan. The real standout in the pack is obviously the Apocalypse difficulty mode, and it injects a reason to think, particularly in the endgame state, which can notoriously get bogged down. That said, as fun as it can be, it probably isn't the kind of game one would choose to experience with every play-through as it can certainly edge towards frustration at being crippled by the hazardous effects of climate change.