I stayed at Francesca's place recently and overall not bad! AC is great, excellent value for the size of the place, she was very nice and communicative as were the people who greeted us and drove us back to the station. Kitchen has basic amenities and there is coffee provided. We used the toaster oven and there were dishes and cutlery available. Basic cookware as well.
The bed was comfortable! I always think thats the most important part. Plenty of storage for your things. I know it's not super important but the TV with cable was nice too lol.
A couple things, if you have mobility issues or bad knees or something there are a lot of stairs and the area is on an uphill street, and going to Vomero is a lot of stairs if you're walking. The place is generally neat but the biggest issue we had was some ants in the bathroom and a roach on the last day despite not leaving out any food. However overall we had a pleasant stay. The location was quiet, a welcome oasis from the hustle and bustle of beautiful Naples. Dont miss the view down the hill!