Roberto was very welcoming with us even though we missed our scheduled train from Venice to Rome and arrived 6hrs later than expected. The flat was exactly as expected - on the ground floor, close to the metros and bus stops, easy to get to from Termini, and close to a supermarket. All the major attractions were manageable from the metro as well.

The only (minor) issue was that we didn't feel quite safe walking to the apartment from the metro station at night because one of the major streets there has very wide sidewalks but is REALLY poorly lit. You can avoid this if you take the bus or, as we figured out on the last night there, if you just walk on the street instead of walking on the sidewalk (better lit due to street lights and cars passing by, plenty of space too).