You‘re booking a room and bathroom within a flat with 4 or 5 of those rooms in total.
The whole flat is perfectly clean and the rooms are super new and comfortable. We even had straight view to the Vesuv from our room.
It is located right at the train station from where you walk 30secs to the station and ride about 10 minutes by car to the airport.
Hosts are very nice too and flexible with the check in.