This is not an individual apartment, this is an independent room in her apartment. There is no escalator in the building and you have to climb every day to the top of the building which was exhausting even though it's probably common for all Napolitan people. Also airport is still close to the centre of Napoli so you can easily hear the noise of airplane until 10-11pm!
The above things are good to know before booking. Over all our stay was good. The room was small but it was comfortable enough.