The street looks a little rough, especially at night, but the apartment is super fancy!! It's the prettiest apartment we've stayed in on our Italy tour. It's a short walk from Garibaldi train station (also where the metro is) and an even shorter walk from the last station of the Circumvesuviana. It is in walking distance of old town area. Your host is right next door, so he's easy to reach if there's a problem, although we had none.