We've stayed in Nicolo's apartment for 3 days, and we had a nice experience overall. The location is good, despite Naples' overall chaotic vibe, it's relatively calm and it doesn't feel unsafe. Stations for both metro lines are close by, and there are few restaurants around. The apartment is spacious and nicely decorated. We haven't used it but the kitchen looks very convenient as well. There were some minor bottlenecks, but I can't blame Nicolo as we didn't even ask him for any help (no toilet paper, a cockroach friend, which sometimes happens and is very difficult to avoid with personal efforts, anyways). Overall, I'd say it's a nice option in Naples.