My friends and I are extensive travelers, and we unanimously agree that we'd recommend Paola's place to anyone who's visiting Naples in the future.
Start with Vomero - this is a lively area on a hilltop in the city of Napoli, away from the touristy, chaotic downtown. The panoramic view of the city is breathtaking, some nearby restaurants were of top notch quality (highly recommend Godot seafood restaurant, and Osteria il Pacchero). Yet the area is easily accessible from the city - various lines of Funiculars and Metro Line 1 take you to anywhere in the city within 20-30 min.
The apartment is very spacious, clean, and tastefully decorated. It has all the necessities to make one feel at home. Paola is such a wonderful host, responsive, thoughtful, and goes out of her way to help us.
The only drawback we experienced was the WiFi - it's not the issue of the apartment but the infrastructure in Naples and Italy. Conference calls were quite challenging, so were some other work tasks.