Staying at Cristina's place was very comfortable. The room was well sized and livable. There was some noise from the street, but not much, and more than anything else it helped us get up early to explore. Cristina was gracious, helpful and unobtrusive. Her dog is a big, sweet animal.
The location is very convenient. Bus stops and a metro stop are close walk as are a number of shops and restaurants. It's a nice walk to some locations too, like the Colosseum. Overall we were very pleased.