Excellent game -- and the sequel story is excellent too!
A lot of people have already mentioned that the game has a great depiction of mental illness, so I want to highlight something else: it's not mentioned much in-game, but in the sequel story One Year Later, there's some really interesting exploration of Alejandra's family, including discussions of cultural /immigrant identity and the frustrations (and joys) of being different from your parents, but different from those around you too.
There's some great stuff in the art collection, too! Definitely worth your money.