This isn't the typical hyper-minimal, brain-dead, condo-style AirBnB. This is a magical, precious jewel that seems to mix the Medieval era with that moment in your 20s when you have the courage to leave your parents' house, strike out on your own, make a home where you can, make it beautiful, and live simply in that beauty. It's as if La bohème were set in a very special issue of World of Interiors.
It's not necessary to say much about the location (fabulous; you'll eat and drink well and be first in line at the Pantheon). What's most important is how the place FEELS. It's suffused with a long and deep love of art, of learning, of language, of observation, with both serious intent and a playful spirit.
In this algorithmized world, you will never—or almost never—find so charming and unique a stay.