I can only recommend Roberto's place for multiple reasons.
First, Roberto welcomed us at the apartment (although we arrived quite late with the plane) and provided us with great advices about inner Rome and the surroundings of the apartment. He was super kind, helpful and full of good advises.
Furthermore, we went to Rome for remote work, and the place was great for that: perfect wifi, tables, nice terrasse for breakfast and lunches etc.
I can only recommend