Our stay at Annarita's place overall was very pleasant! The place looks exactly as shown in the pictures and it even has 2 (!) balconies. There are many bus and metro stations near to the apartment, which was very convenient for us. Annarita and her family were super nice! When we arrived Annarita's brother and his friend welcomed us in the apartment, gave us some tips as to where to go and even drove us to a pizza place nearby (which unfortunately was closed at that moment but we quickly found a substitute).
Our stay was made somewhat more complicated by the fact that Alitalia, the airline we travelled to Naples with, had lost one of our bags, so we spent quite some time trying to get that piece of luggage back. Annarita was super helpful in that she called the airline numerous times for us and even went to the airport with my friend, where she fortunately got her luggage back after two days of uncertainty. After that Annarita and her mother went for lunch with us in a tiny trattoria where we had awesome pasta and fruit and to a pasticceria where we had the most delicious dolci (try sfogliatelle and arragostine). In the end they even drove us the port in Pozzuoli where Annarita helped us getting the right tickets for the ferry (it's not as easy as it might seem) to Ischia.
So if you're looking for a spacious place in Naples with great public transport connections to various parts of the city and an awesome host I can totally recommend Annarita and her apartment :)