Not only was the room clean and comfortable but in a great location as well--a fifteen minute walk to the Colosseum and just down the street from a metro stop. Marco was very helpful, and gave me a tour of the neighborhood and a metro map, and even let me take a nap at his house (a short drive away) while he prepared the room. Do take note, however, that Marco doesn't live there; without wifi, I ended up at the apartment with no idea what to do nor where he was. Luckily someone from the hotel across the street let me log into their wifi and I was able to contact Marco. Make sure you let him know when you will get to the apartment so he can meet you there.
The wifi was not great in the room--I would sit on the floor near the door for constant connection--but other than that the room was marvelous. I also ordered my Eurail pass too late to have it shipped to my home in the States and Marco let me use his mailbox. He was very kind and helpful with everything. Overall, I would definitely recommend this room to a friend. I had a blast, and I thank Marco for everything!!