Anna's place has everything you need for a city-stay in Napoli! If you are renting a car - make sure it is small. Whilst her garage is big, getting it there in one piece will be a challenge :)
The flat is well equipped, and the central heating is roasting - and the A/C is ice-cold. So, it is really good for a break "all year".
The location is IDEAL for city-centre, all the sights / museums / station / buses /taxis; and all the fabulous pizza / trattorias...
The roof-terrace catches the morning sun, and so breakfasts are just lush, if you've not over-indulged the night beforehand!
Anna - thank you... you have converted your family building very well - I hope you are successful ... it deserves to be.