The apartment is clean, tidy and most importantly, safe! You would need that especially in Naples. The location is great, 4 minutes to Circumvesuviana station (Porta Nolana) where you can catch a train to Ercolano, Pompei etc and there's also a decent supermarket, Deco, just a few steps away.
The host, Emanuele, is wonderfully kind and very quick to response to any questions. He gave us lots of helpful information about where to eat, where to go... in Naples.
The traffic can be very chaotic but the good news is that cars do stop and give way to you most of the time so just look around carefully when walking & crossing the streets then you'll be fine.