Anna's place is in a great location for exploring the historic district. It's close to popular pizza places and not far from a metro station. The only negative to this is that it is noisy. We have stayed in Naples before and experienced similar; neighbors are in the street at all hours of the day talking, driving, playing music, etc.
The place is clean and has the essentials. She even has a fridge with drinks for good prices. It's at street level, so no stairs to climb. It has been updated and looks nice. however, the paint is peeling in some areas, particularly over the stove. it didn't matter to us since we didn't plan to cook. All in all, a great place to stay in this neighborhood of Naples.