The location is perfect, and although it's situated in the middle of a busy center, it is surprisingly very quiet and isolated. Barbara is super friendly, she recommended her best restaurants and gave us tips and tricks to better ease our way in the city. She is also very flexible and responsive.
The only inconvenience was that some people opened the door on us when we were sleeping on the last day at 8:30 in the morning, they turned out to be the house keepers who were there mistakenly two hours earlier.
Another thing worth noting is that the apartment fits 2 persons max and has only 1 window in the kitchen as mentioned in the description, so it is not well ventilated and sometimes the smell is bad when you turn on the ac.
Otherwise it was a pleasure meeting Barbara and staying at a safe quiet place in the middle of Roma.