We really enjoyed our stay at Fabrizio's apartment. It is old but lovingly furnished. There is everything you need and more than enough space for two persons. In addition the whole apartment was very clean and tidy.
The best to our opinion is the great location! 3 minutes by walk you can reach a 24/7 supermarket and the metro. You can get to the highlights of Rome (Colosseum, Forum, Trevi,...) approximately in 30 minutes. It was perfect!