Lovely apartment, spacious for a one-bed. The place is very secure, with both a front gate to the building and a bolted gate in front of the apartment door. You'll experience the real vibe of Naples staying amongst the local residents, and its well worth the price.
Location wise is close to Piazza Bellini and the historical quarter, and not too far a walk from the shopping district as well. 2 Metro stations close by as well (~5 mins walk) to take you quickly and easily across Naples.