Had a great stay!
The room is spacious and has a nice big window (you can sit half inside - half outside and enjoy the busy street noise). Next to that, it offers the necessities. It has aircon. Be aware there is no coffee machine but plenty of opportunities for that in the neighbourhood.
We liked the location, although when arriving from the station were a bit hesitant. Actually there are a lot of nice restaurants in the area and we often ended up walking back from the center to have diner in our area. There is some street noise but nothing exceptional for Roman norms.
Communication with the host went smoothly and quick. We loved the tips we got, we started following them one by one and when we noticed they were that good, we relied on them for the majority of our stay :)