The hosts were extremely helpful during our stay. Our flight was delayed so we arrived 2 hours after the check-in time, but they waited and got us checked in with no problems. When we had an issue one of the employees sat with us for 2 hours while the hosts drove for an hour at midnight to come and help us.
As for the room, it's very clean and nice, the bathroom is nice and all the amenities work perfectly, including the air con. It's on one of the main roads to the center of Napoli so it's easy walking distance.
Definitely recommend.