This airbnb is corporate owned and therefore the management company is not as familiar with the neighborhood and apartment as an individual would be.
Do not underestimate the noise level for the bedroom and living room facing 4 Novembre street. It is not tolerable in any sense of the word. There is a bar that plays music until 4 am and people spill out on to the street making noise. Closing the outer shutters and wearing earplugs helped somewhat but I did not rest well the entire 4 nights. I should have gone to one of the lovely hotels in the area. 4 Novembre is a main artery into Rome from the train station and even though it looks small on a map it is busy 24/7. If you're looking for a quiet respite from busy Roman sight seeing look elsewhere. We waited 40 min for Simon to meet us after we arrived at the apartment even after we gave them the time we would arrive days in advance and when we arrived at the train station. No excuse for that lack of service. Another issue is the random sewage smell in the main bathroom. I think the exhaust system is somehow connected to other units. You can open a window and get some air but can't hear yourself think from the street noise.
On the plus side, the apartment is roomy but not "elegant" as described. It is basic IKEA all the way.