The apartment is everything you would need for your stay in Naples. It is ultra central and it has access to everything. Plenty of bars and cafes nearby. Carrefour express right next to it. You can get the airport shuttle, get off at the port and then you'd only have a few minutes walk to the airbnb.
Self check-in, but we met Guido, which is a lovely guy. Both Gianpiero and his colleague responded very fast to the messages and are really nice.
Definitely would recommend