The apartment was clean and modern, just as described, except one thing: the toilet could only be flushed with a bucket filled with water because of a damage done by the guests who were there just before us. It wasn't super convenient of course, but it wasn't a huge problem.
As for the location, the apartment is in the central area of Naples. Visiting historical sites, shopping streets and travelling to other places around Naples (like Pompeii, Sorrento, etc.) is very easy and fairly quick with public transportation. The neighbourhood itself is okay, it is very close to everything, there are great restaurants nearby, but the streets are dirty and noisy.
We arrived when the city started the disinfection of the neighbourhood which unfortunately meant a lot of dead cockroaches in the streets. We could only see them for a couple of hours in the evening, since they cleaned them up for the next day. Some cockroaches made their way up to the living room somehow which made us uncomfortable. Unfortunately the next day another one made it to the bedroom, which made us leave the apartment earlier (cancel the reservation) and find a new place to stay. It wasn't Fabiana's fault at all, but we couldn't enjoy our stay there any more. I believe we were at the wrong place at the wrong time - I don't think it would happen all the time. Fabiana was very sorry and understanding and she gave us a partial refund.