We had a great short stay at Anna and Gianni's place. They met us at the time they said they would, helped us get what we needed, navigate and let us store our bags until or flight! It's centrally located to a lot of awesome places to eat and things to do. Very lively! So much so, that if you're sensitive to street noise you may want to look for something less centrally located (we didn't have mind).
Overall if we were to come back to Naples we would definitely stay here again!