It's a very good spot in the center of Naples, in those famous narrow streets, close to via Toledo, main squares, Duomo, Castle Sant'Elmo and Port.
We enjoyed staying there. The room was spacious and fortunately had a ventilator, otherwise we would have died cuz of hot weather. We also could use the kitchen when we needed it. The apartment is on the fifth floor (and since the building are old, the floors are quite tall), and it was quite a challenge to climb the stairs after walking all day long, but still it was a good exercise to burn another Margherita eaten) In general, very authentic experience, and we'd recommend it to any visitors to Naples.