It is important to stay in the right part of Naples. Near the train station is rough - don't go out at night. This place is just off the Via dei Tribunali which is bustling, full of life all day and into the late evening, largely pedestrianized. Full of people out for the evening, dozens of cafes and restaurants. So this is where you want to be. It feels safe.
It is a 1km walk to Dante metro, and it feels OK in the evening. It felt safe at 7am Sunday towing my bag.
The apartment is in what is essentially an insula, with a large courtyard. The stairs are beautiful, wide, spacious, full of dignity. I didn't use the lift, stairs like that cannot be ignored.
The apartment has a very large main room which is beautiful. A glorious burr walnut upright piano, lovely table and chairs, lots of elegant wood, and an aircon unit. Smooth tiled floor that would be OK for ballroom or tango.
The kitchen is .. a kitchen. it all works, but with majolica like tiles - very pretty. Bathroom is similar. The study also has an aircon unit.