Giulia’s apartment is a very well located and practical place for a few day stay. It is in a student area, which means that the neighborhood is lively with some great eating and drinking options very close. The port and train station are walking distance 15-20 minutes away.
The area is a great jumping off point to see the city sights. Note that as of September the Universita metro stop is currently closed. It doesn’t really make this clear anywhere. Use Toledo or Duomo as alternatives.
The apartment has a the luxury of an elevator and a wash machine. Clothes need to air dry as is the usual European way.
Quiet is necessary for me to sleep, and with the windows and curtains closed, the apartment was quiet and dark. That was great. With the windows open you can listen to the sounds of the city.
For eats I loved Tandem which is a place specializing in ragu. It is just down the block. Service is polite but slow and the food is awesome. Note that Italians eat late so for a table try to arrive before 9. After 9 you may need to have reservations or wait for a table.
A bit further in Chiaia, I ate a place that transited to the name “the drunken Noah”. It was fancier but very very good.
Enjoy Naples. It is gritty in spots, but also a fun and friendly living city. Giulia’s apartment is a great jumping off point for that.