The host was very kind, we were well welcomed and he answered very quickly to our requests.
The apartment is near one of the main place in Napoli so you can visit and eat easily .

As said by other previous visitors, there is no soundproofing so you can hear other people near your apartment...but it is casual in Italy so don't worry.
The appartment smells the cigarette... Not a problem if it doesn't affect you ;)
There is also no kitchen, but you can ask for table cutlery to the host that lives in the room nearby.