If you want to visit Naples and be close to Museo Archeologico Nazionale, Orto Botanico, Capodimonte and other sites this is a perfect choice, and very affordable. It is close to a major street with a bus line in a “real” Napoli neighborhood but it felt very safe. I never took the train but a metro station was very close by. The apartment is perfect for one or two people and had everything my traveling friend and I needed. Nice kitchen area with everything you need if you want to cook. It was spotlessly clean and the bed was very comfortable. My friend arrived a day after me and our hostess made up the sofa bed for her and even dropped us off at the museum after offering a very reasonably priced ride from the airport. The shower is amazing and the towels were the best ones I encountered on a three week trip, beating out some pricey hotels. As for noise, Naples is a very active city so you will hear some, but since it is off the main street, the traffic and sirens are buffered so noise was not an issue. I never heard any neighbors through walls, above or below. The best thing was the hospitality. You will not find nicer or more accomodating hosts anywhere! They were welcoming, helpful, and so very kind. Thanks for a wonderful stay,!