This is the perfect example for "less is more": a small gem in the characteristic Quartiere dei Spagnoli. The apartment is small yet very functional; everything is provided, even oil & salt and something for the first breakfast. Tiziana has thought of everything to make you feel at home, so you just have to think about what to visit first in the fascinating Napoli.
On the practical side: be aware you'll have to climb some external stairs and internal stairs to go to the bedroom (bed was very comfy). So a good mobility is key. However, this is a small price for being right next to Via Toledo (shopping street) and close to everything, while enjoying the popular charme of the district. I actually did most things by foot and felt very safe (I'm a female solo traveller). Nearby you'll find also renowned shops like Sorbillo (pizza fritta) and Caffè Gambrinus.
Moreover, Tiziana is always ready to help: there was a small issue with the wifi which she solved efficiently and in the shortest time.
In short: a place I recommend to whom wants to feel Neapolitan in Napoli.