The Airbnb is exactly as shown on photos. It has a great kitchen, comfortable beds and a good shower. It is right by Napoli Centrale (and hence the bus station and circumvesuviana) which makes it really convenient to do day trips. However this also means the area is super busy and sometimes felt a little sketchy. There is no lift access to the building, which was not a problem for us but might be for others. The host gave us some amazing recommendations for authentic pizza and other food. They also provided clear instructions for check-in and out.
Also, if you are squeamish about toilets without toilet seats, this is not the place for you. However, all across Naples we did not find toilet seats in bathrooms (perhaps a cultural thing here), so it may not be anomalous to this listing.
Overall, I would recommend this Airbnb to those visiting Naples for a short visit and the hosts were communicative and helpful! :)