This is a lot of fun to play spot-the-influence with; it's highly referential to "The Yellow Wallpaper", "Rappaccini's Daughter", "The Fall of the House of Usher", "The Rats in the Walls", Rebecca, and many other classics of English-language terror literature. It also makes mention of some Latin American tales and poems with which I'm unfamiliar but will make a point of seeking out. I love discovering books through other books.
I am more impressed by Moreno-Garcia's "The Tiger Came to the Mountains", which was published two years later and seems to me a more distinctive and mature work. I'll be reading everything by Morena-Garcia.

Some of the negative reviews on here complain that Mexican Gothic is insufficiently Mexican in atmosphere and setting to warrant its title. I wonder whether these folks bothered to read the author's afterword.