I promised Ciro (and Giovanni) that I would write a great review so here it comes!
1. It is 200m way from the Amadeo station, which then takes you to the city centre quickly, so I loved that.
2. The aparmtment is super airy and fresh, even without the trusty AC on. There are two stories, with stairs.
3. They have this cute little mini bar which we didn't use at all but was just so dear. The kitchen has the biggest fridge i've ever seen in an Airbnb. Supermarket is just 10m walk away, and eateries abound around the house.
4. It is clearly the more upscale part of Naples, so you get the quieter safety and charm of Chiania, while being able to metro quite quickly into city centre.
5. Check in was smooth. The host answered promptly and was friendly and helpful.
6. Vibes: Overall, I felt that this was hands down the quintessential "airbnb experience". The locals were there to greet you like a friend, and I felt like it wasn't as commerical as some of the other hosts who run their apartments the same way as a hotel. It's one of the places in my trip where I know for sure I would come back to next time, and would not pass over for a hotel!