We greatly enjoyed our time in Naples! The apartment looks exactly like the pictures: small but sufficiently big for two persons and equipped with all the necessary materials (kitchen with fridge, stove & few small pans, small bathroom, double bed...). The apartment is rather basic, though, in the sense that e.g. you shouldn't expect to be able to cook elaborate meals. Also, we visited Naples in the hottest period of the year (August) so that it was pretty warm in the apartment most of the time. However, the heat didn't prevent us from sleeping soundly because we could use the fan on a stool by the bedside.
The apartment is perfectly located: smack bang in the middle of the historic city center. Some of the city's finest pizzerias are within 5 min walking distance, you reach a central metro stop within 10 min and within 20 min you're at the central station. Last but not least, Chiara and Ciro are fantastic people! Both of them are very attentive and always willing to help, both in Italian (Chiara) and English (Ciro). They had arranged for a neighbor to hand over the keys to us when we arrived and we could always drop by their apartment next door if we needed anything. All in all, we would definitely recommend this place to people who want to enjoy Naples without expecting too much luxury.