Matteo deserves being a super host, because he's a super person. He's friendly, incredibly patient, and great at communication. He's a great resource for all things Florence and answered just about any question I had both big and small. And he was flexible with my check in time... both before and after my flight was delayed for hours.
The apartment is cozy and a nice little home base to explore Florence from, since it's a short walk to basically all of downtown. There's opportunities if you want to mingle a little with other guests coming and going in the kitchen or hallway, but totally possible and fine to just come in and unwind in your room.
There is a little noise from neighboring apartments and the railway just outside, but it never bothered me that much. After beating feet all around Florence, you'll probably not have a problem snoozing!