We had a wonderful stay at Mariano's apartment. It is very close to the metro station and to a big Carrefour Market. Besides, Bagnoli seemed like a safe and quiet quarter of Naples with nice people around.
To taste the famous pizza napoletana we recommend the pizzeria next to the apartment called Pizzeria Gennaro 2, where you can even ask for gluten-free pizza.
What made our vacation perfect is that Mariano was very friendly, helpful and always available. His apartment was even nicer than in the photos with a big terrace, from where you can admire the beautiful Capri.