The place was great! The apartment was modern and nicely decorated. The bathroom was small but it was clean. Communication with the host was easy as she was reachable and she replied quickly to our message. The check-in was a little bit late, but they came with some maps, information and tips about the neighborhood, what to visit, etc. They also brought us some local pastries!
The location was convenient. It takes about 15-20 minutes walking to city centre, and it was very near to the airport. There was a free car park just next to the apartment that is used by the neighborhood as well. It could be noisy during the day, but it was quiet during the night. The wifi was reliable, and we could download big data around midnight. Staying in this apartment while visiting Napoli during the day was a good value of money :)