Marco's apartment is spotlessly clean, very comfortable and convenient. I was with my husband and two sons. One of my sons, who has stayed at many airbnbs said that this was the nicest he had ever seen.
Since it's a first floor, there's no problem getting luggage in. The apartment is situated on a very quiet street, so no noise from traffic. It's a short walk (10 min) through a nice park to the Coloseum or Domus Aurea. Close to some great, not touristy restaurants, the metro, and grocery stores.
Marco also arranged a car to get us at the airport which made getting into the city and the apartment seamless.
I would have no hesitation to stay here again.