We had a great stay at Enrico’s apartment. It is a stately and elegant apartment in a pleasant area. If you have any concerns about Naples safety, I think this would be a good pick for you. It is a few minutes walk to a train station that we used to get anywhere far we needed to go. There are plenty of cafes, shops, and restaurants close by.
The Wi-Fi was a little spotty but that has been my experience everywhere in Italy so far so it might be the norm.
Enrico was friendly and prompt with all the communication and seems to care a lot about you having an enjoyable stay.