We chose this airbnb mainly because of two reasons - positions close to main Termini station and good reviews about Lucia - it was our first stay and we wanted to have someone to turn to in case of need. But we did not have to at the end. We actually saw her only once when she was handing us over the keys. Any questions were answered very fast.

At first we were a bit nervous about neigbourhood because of the graffiti and occasional strange people, but it showed up to be only our feeling - we come from pretty small city so we are not used to it.
There is actually a huge police station just behind a corner.

The only problem is that it can get really noisy over the day because of the closeby railway. However it is not problem during the night when noise diminished. So I suggest to you to explore the Rome and the surrounding (we really liked Santa Severa beach) during the day.