YMMV: Heidi

  • First Installment Wins: By virtue of the two sequels, "Heidi Grows Up" and "Heidi's Children," being written by her English translator Charles Tritten and not by Spyri herself.
  • Germans Love David Hasselhoff: Heidi is a classic in the German-language sphere as well as the world, but it is notably popular in Japan, Italy and Turkey.
  • Glurge: Enjoyable Glurge, but still.
  • Purity Sue: Heidi. Klara, to an extent.
    • But apparently not Purity Sue enough for Fraulein Rottenmeier. It's hinted that Rottenmeier has been reading books featuring Swiss girls that were even bigger Sues than Heidi ("I thought I would look for a little Swiss girl, as I hoped to find such a one as I have often read about, who, born as it were of the mountain air, lives and moves without touching the earth") and is disappointed that Heidi doesn't live up to this impossible standard.
    • Fair for Its Day: Heidi and Klara are characters from a novel written in 1880, for readers of that time frame. So they're Purity Sues by today's standards, but not for the time they were written.
  • Mainstream Obscurity: One TV movie became known to a lot of people only because a broadcast of it pre-empted an extremely tense AFLnote  game.
  • Never Live It Down: The book is haunted by the 1968 TV movie which prevented people from seeing the quite exciting ending of a football game that ran long (technology at the time prevented the network from switching back to the game when it became clear just what people were missing). Ever since, sports games have cut into scheduled programming.
  • Nightmare Fuel: So, so much in many of the adaptations. Fraulein Rottenmeier is one of the egregious examples of this in a few of the cartoon versions, but especially in the Hanna-Barbera film "Heidi's Song."note  There's one part where she turns into a fanged witch and...well, you should really just watch it for yourself. Or don't, if you'd like to sleep again.
  • Tear Jerker: Come on, try not to go for the hankie when Klara finally leaves her wheelchair.
    • Or Heidi's Heroic BSOD that leads her to become a sleepwalker because she cannot stand being away from home.
    • To a lesser extent but still applies, when it is hinted at Alm-uncle's backstory that he left the army not for a murder, as often rumoured, but for the death by illness of an officer he had under his care as a male nurse sort of way, and said death was the beginning of his breakdown. Consider now that the first time the readers have access to those memories is by association with Klara, and that by helping her recover, he appears to be paying tribute to a man he admired and could not help, and...
  • Values Dissonance: It's strongly implied that Heidi's sleepwalking spells are caused by a propensity to epilepsy - her Missing Mom Adelheid had seizures ("curious attacks, during which no one knew whether she was awake or sleeping"), and at the time the book was written epilepsy was thought to be inherited.
    • Heidi's little book of parables about what happens to children who don't learn to read includes sending them away to live with the Hottentots.