Everything about Guido's home is fantastic. He goes above and beyond to make sure you are comfortable and properly taken care of. The room is airy and spacious. The location is out of the way of major tourist spots, but still close enough to walk everywhere. The best cafe (also extremely economical, 1€ cappuccinos) is in the building next door, and there is a grocery store around the corner as well. I would stock up on snacks etc for a late night orange, or things to much on while touring around the city during the day.
The neighbourhood itself does have some noise at night, as it is in heart of a student-oriented area. Chatter, some drinking chants, and drinking banter is present in the evenings. As a recent graduate myself, it reminded me of home, but it could present problems if you need complete silence to sleep.
Wonderful stay. Guido is a warm and generous host. I'm eternally grateful for being able to stay in his home.