Alfonso is a very good, welcoming and helpful host. He helped us with all our requests and provided guidance how to get to the casa and how to get around Naples. It was a pleasure.
The house is newly decorated, very clean, and Maradona themed. It's fully equipped - dryer, fast Wi-Fi, laundry, TV with Netflix and microwave as well. One disadvantage is lack of natural light in the house - so it can be a downside for somebody staying in the casa during the day (i.e. for working from home). It's located very near Via Toledo and Metro station - so it's in the center and close to the everywhere, but on the flipside, the area is very noisy with lots of scooters driving on those narrow streets, so it can sometimes be overwhelming (but that's Naples ;)
One thing to consider is it's good to have Wi-Fi calling in phone (SIM card) - as there is no cellular signal in the house - as we experienced often in Naples, i.e. in restaurants.