My wife and I had a wonderful four-night stay ay Chiajafiorita. Two things attracted us to the apartment: the location and the terraces, and both aspects made our stay exceptional. Via Chiaia is a pedestrian street, so it was a little tricky getting there in a cab with our luggage, but once you are there it really is an ideal spot for visiting Naples, with access to the Chiaia neighborhood and the Lungomare in one direction and the Royal Palace, Galleria Umberto and the beginning of via Toledo in the other direction. The apartment itself was very comfortable for two people, especially the beautiful front terrace, which we managed to take advantage of several times despite it being the beginning of March. The living room is bright and airy and feels like an extension of the terrace, greta for reading or enjoying a glass of wine. We also really appreciated the full-length bathtub after full days of rigorous walking (lots of up and down!) in the city.
This has to do more with Naples than Elena's apartment, but if you are considering visiting Naples but are not sure, just do it! It is a fantastic city, with so many fascinating things to see and people that are genuinely friendly. It's unique, and Chiajafiorita is the ideal place to enjoy the experience.