Christopher, thank you for your hospitality!
Our vacation was great. Christopher showed us places to go (markets, best parks, museums, etc.) Apartment was comfortable, everything was clean. Apartments are located in 5 min from Colosseo. But you can easily walk to Vatican or any famous historical place without using the underground or tram. There is a lot of dishes, so you can cook. Our flight was at the evening and Christopher let us to leave bags at aparts.
I strongly recommend you to reserve his apartment!