Massimo's house is just outside the walls, in a very good neighbourhood. You share a whole floor with the other guests, it includes a small living room and a kitchen with another room where's a table. The rooms aren't very big, but there is enough space to put all your stuff, and there's a bed. Two of the three rooms also have a couch. I myself preferred sitting in the living room over sitting in my own room because in the room there's a couch and a fauteil and the Wi-Fi works better than in my own room.
Massimo is a very friendly host, who will help you with everything you need. He helped me checking the contract when I found an apartment, and I could just text him if I needed anything. He even drove me to my new apartment when I had to go and it was pooring raing. I would really recommend the place.