I stayed here together with my family (3 years old kid included) and we had a great time. Communication went very well when we booked and even better before our arrival.
In my opinion this apartment will give you a true napoletan experience and not with the facilities (because it has all you need), mostly because of the space for a ground floor aparment and also by hearing the moto scuters on the street.
Marianna and Salvatore were also very nice and stored our luggages 3 more hours after the check-out, so we can walk a little bit more on the street before our flight.