Emanuele and his dad are very nice and helpful. They only speak Italian but with the help of a translation program the communication was no problem at all. We always got a reply right away (before our trip and while we were there). When we had a problem with the gas stove Emanuele came and showed us how to use it. As we arrived outside of the check-in time it was his dad who greeted us. He even got us a good deal at the parking lot.
The district Sanita is a bit of a rough area of town but has a great vibe. There is a metro station within a 15 min walk. I recommend to NOT come with a car. Driving in Naples and especially in Sanita is a nightmare. With public transportation everything is very easy to reach, even Amalfi coast, Pompeij etc. is easily accessible by train.
The only things that we didn't like: There is no wifi and phone connection whatsoever. But Emanuele promised to fix that. The air circulation is also not so good because there is no window in the bathroom and just a small one in the main room. It's still ok though. All in all we enjoyed our stay!