Stayed at Marco's apartment for 8 days and loved it. The location is perfect -- it's on a side street in the historic city center. The main train station is only a 15 minute walk away. The neighborhood is bustling with life -- there are pizzerias, cafes, and shops everywhere. Marco is very friendly and clearly enjoys renting out his apartment. He was quick to respond to any questions I had. Also, the wifi was solid. The next time I visit Naples I will definitely stay here again.