Chiara's apartment was very modern and clean. She provided us with the basic kitchen facilities (tableware, cooking ware and oil, detergent, etc) if you wanted to cook meals (there was a wet market about 15min walk). Even though the apartment had no air condition, it was very cool and breezy being on the top floor (there are no elevators so you'll have to climb 6 flights reach the unit).
The location was okay, being situated between Piazza Dante and Montesanto. Going up and down the cobblestone hill to reach the apartment itself was a definite workout.
Even though I never got to meet Chiara as she was on a business trip, her father who settled us in was very nice but spoke little English. Our flight had a major delay and we arrived in Naples very very late but he and Chiara were very forgiving and I apologize for the lateness!!
Overall definitely would recommend renting her apartment as it's convenient walk or public transportation.