We enjoyed our stay at Panorama. The apt was very clean and it is very spacious. We were there with a family of 4, but there was space for at least another couple or family. It is very comfortable and clean. Carlo was very effective in his communication and helped us organise transport and any other services that were needed.
The area is just north of the historic centre and you are close to 2 subway stations / train station, making it easy to get around. The building like most building is an older building, but the apt was very nice, well renovated, with AC and good furniture and kitchen appliances; the view from the apt in the kitchen had a superb view.
I highly recommend staying at Carlo’s place d’or your time in Naples.