If you're on the fence about booking this place, don't be! Book it now. You won't regret it. It was the perfect place to stay, and Michela is a lovely, friendly host. It's close to everything and the views are incredible. I was there for a few days and I didn't want to leave! :)
Being in the center of it all, the neighborhood is very lively, so there is some noise (people singing, shouting, laughing, etc.) and it is right next to a church, so there are bells throughout the day (but not at night). To me, that was just part of the appeal and none of the noise was crazy enough to keep me up at night. But I figured it is worth mentioning for those that need total silence to sleep.
I was traveling alone as a woman, and even when walking back my myself at 2 in the morning, I never felt unsafe.