The welcome we received from the "Princess" was excellent and we were given an immediate quick tour of the old palace rooms and some welcoming treats by Paola...a lovely lady.
The famous pizzeria downstairs was an added bonus. ( https://www.tripadvisor.com/Restaurant_Review-g187785-d1557920-Reviews-Ciro_Oliva_Concettina_ai_Tre_Santi-Naples_Province_of_Naples_Campania.html)
The neighbourhood is lively, noisy and quite run-down with the very narrow streets and the local market but this added to the visit for us.
When you stay in this apartment you feel that you are in the "real" Naples...especially when you just lounge on the terrace above the "din" below you. Please be prepared for street noise until the early hours of the morning.
The Metro at Piazza Cavour is just a few minutes walk away so transport was not a problem. You dial 0810101 to order a taxi and just ask them to come to the famous pizzeria and they came within a few minutes when we called them.
A great place to stay and enjoy the Naples experience.