Stefano's place is absolutely lovely. Really nice decor and all you need for a stay in Napoli. Super convenient location for things in the historic centre, pretty close to the train station and a lot of the good pizza places. And right opposite the Museo Madre which is worth a visit if you like modern art.
Stefano's girlfriend actually met us to check in but we met Stefano when we were unable to unlock the door to the apartment one night at 11pm! We called him and he came straight away to sort out the issue. He was super chilled about it all and was helpful in recommending stuff for us to do the next day.
All in all, highest possible recommendation.