We had a great 3 nights stay in Rome. The location of the studio couldn't be better! Walking distance to really all points of interest, but also bus stops and tram station near by if your feet start to hurt (what will definitely happen latest on the second day). The studio is small but pretty: one room with a king size bed and a little kitchen unit. It has a small bathroom with shower which was actually better than we expected it to be in such an old house. Constant temperature and enough water! You are not allowed to throw paper into the toilet which is normal for these old houses but still took a little getting used to for us...
Tommy was a nice, reliable and helpful host for us. Over all: clear recommendation! We threw a coin into the Trevi fountain to come back :-)