Four of us stayed in the apartment and found it extremely good value for money. Exactly as advertised, it is a short stroll to the main historic shopping district, a five minute hike to the Spanish Quarter and similar to the port.
The apartment has been lovingly and carefully renevotated, carefully maintained and features everything you could possibly want during your stay. There are lots of bars in the area, which may be a problem for some, but the noise on a Saturday night during the Carival season wasn't bad and a few of us stayed out a long time and got to meet a lot of locals who invited us for various celebrations.
Next time we are back in Naples, we will definitely seek to stay here again. Recommend it.