Upon arrival, Annachiara's husband welcomed us very nicely and was professional and polite. He informed us that Naples carries a city tax of 2 euros per person per night, that you have to pay either before or when you leave the appartement.
Note that the place is quite small so if you are looking for a "flat" type of thing, you should chose something else.
Furthermore, it isn't very luminous as it's located on the first floor and the windows are below head-level.
If you are hoping for a good night's rest, this will not be the place for you as it's a very lively neighbourhood and so you will have a lot of noise until very late at night (depending on the night, up to 5). So if you do not mind that, the neighbourhood is very lively with lots of places to eat and drink perfect for young people. Once again, if that bothers you and you are a light sleeper, I would strongly advise to chose something else. The archeological museum is very close which is quite nice, and the metro is super close as well.