I would say that, as of 11-2023, this expansion for Spirit Island is the best regarding content per money spent value: 10 spirits; 2 adversaries; 3 scenarios; 23 Majors; 33 Minors and more.
Not to mention the expansion from four to six players.

If you're considering buying this expansion, first and foremost, you should be asking yourself if your usual friend group is entranced by the game too. It was my first expansion, and it should certainly be yours if you would like to grant access to more people during one same session.

Not only does it expand the player count, it also grants you access to the Nature Incarnate expansion, which can not be played without Jagged Earth.

The only doubt that should hold you back from buying this expansion is hesitation on whether or not Spirit Island will be a consistent contender on game nights. Imagine yourself in 1 year. Will your friends still ask: "Can we play that game with the spirits?" If so, and if it's also a personal favourite, then hesitation should already be small, as it was for me.

Spirit Island: Jagged Earth (EN)