Our family of 5 stayed here for 4 nights near the Christmas holidays. Paolo was very helpful booking us a car from the airport and checking us into the apartment. We especially enjoyed his recommendations for gelato and restaurants in the neighborhood. The apartment is a short (5-10 minute) walk up a one way street from the Colosseum and has has several cafes, shops, and restaurants close by. The apartment itself is on the 2nd floor of a quiet building. Overall we found the apartment met our needs as most of our time was spent sightseeing in the city.
A few things to note: 1 shower is small and oriented such that you must use the handheld shower wand - otherwise water will spill out onto the floor, which could be challenging for larger or less mobile people. The common living area is also the combined kitchen, dining area, and living/tv room which has seating either at the dining table or on the couch. Finally, the street out front can get somewhat congested during commuting hours, especially the afternoon, so you should plan ahead for ordering taxis or rideshares.