We absolutely loved our stay here. A clean, comfortable, well-appointed apartment just steps from the Coliseum! (We especially loved the collection of art books after touring museums. There is also a collection of music CDs and films like La Dolce Vita). It comfortably slept our entire family.
Even though the apartment is in walking distance to everything, it is a couple of blocks removed from the tourist hustle-bustle, so it feels like you're living in a real Roman neighborhood. Just a block or two from conveniences like pharmacies and an all-night grocery store.
The host was conscientious without being obtrusive. We could not have asked for more!
The only caveat is that the apartment is up two flights of stairs, so if you have a lot of luggage and/or trouble with your back or knees, take that into consideration. But we LOVED LOVED LOVED this apartment and hope to come back.