Stefania is one of the best hosts I've ever met. She waited for us on our first day. Also, she gave us a list of places to eat and drink in the neighborhood and gave us some very useful tips.
The flat was very, very clean. It was a little bit cold inside but for those who want to avoid high temperatures or in case you travel on summer, it is just a perfect place to relax and cool yourself. It also has a balcony with the opening to a silent yard.
If you need some essentials or stuff for the kitchen, there is a Carrefour market right on the other side of the street.
The flat is situated close to a metro station and like 20-30 minutes from Colosseum. We spent our mornings at the coffee bars on the street were we stayed, enjoying a good Italian cappuccino.