The room was nice and clean. There is a great common area which is shared with other guests. I think in total there are 3-4 rooms. Drinking water was provided for all guests. The host was very nice and let us leave our suitcases in the common area so we could explore Rome without any burden before we had to take our bus back to Naples.
The flat, which is only used for guests, is one block from the Metro station Manzoni. 15 min walk to the colosseum.
It was a little louder in the morning between 6-7am. We assumed somebody was cleaning the kitchen in the common area.
Otherwise we had a great stay!! :) totally recommend this place!