These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Adaptation Displacement: The musical and film are more known than the original short story. There was also a French film made of the story in 1948 which is practically unheard of.
Values Dissonance: Lots. The men celebrate driving a woman to (attempted) suicide, gossip is the order of the day, and Gigi's grandmother and grand-aunt work very hard at training her to be a disposable mistress. They even negotiate the size of the apartment and number of servants she will get in exchange for her virginity.