We stayed in the flat over Christmas and had an amazing time. Roberto and Alessia responded quickly to all our requests and made the stay really easy and relaxing.
The flat was perfect for our family - my husbond, me and our two grown up sons. Spacious and neatly decorated with two seperated areas connected by the kitchen/living room. A very nice place to rest our tired feet after walking the beautiful streets of Ancient Rome - which is what you do since the flat is situated in its heart - longest walk is 25 minutes to Colesseum and/or the Vatican.
Roberto and Alessia organised the transfer from the airport both ways (reasonable prize) and met us at the flat when we arrived.
The only little hick-up was that my husbond lost his passport in the airport and we needed the number for the checkin but luckily that was sorted as well.

We would not hesitate to come back and stay here again.