Our stay was excellent! The apartment was very clean, modern, spacious. It is located in the heart of Vomero, close to the market, local cafes and restaurants, as well as the Quattro Giornate metro station.
Fabrizio (Andrea's son) was extremely helpful throughout our stay, giving advice to us on what to do around the area. He was very flexible with us leaving our luggage with him too.
A minor caveat is that the neighbourhood is lively and can be noisy at times, but apart from that, the apartment is in excellent condition!