The place is clean and tidy. You will always have fresh bedsheets and towels. The host is friendly and answers your messages very quickly!
The air conditioning is strong, but doesn't go up the "first floor" (the room with 2 separate beds), so the air might be not so fresh there, as it is in other rooms. Athough I personally didn't find it disturbing. Plus, Martina offers a ventilator in every room!
We didn't know what to expect from Naples, but were positively surprised. If there is anything about it that you don't like, just give this city 2 or 3 days. Walk around, admire how unique it is and let the old houses charm you. At the end of the day eat pizza Margherita (it tastes much better in small, non-touristic restaurants). Climb up the volcano, visit Pompeii or take a 300 km/h train to Rome! You can fall in love with Naples as we did!