Federico was a great host. Everything went very smooth and easy. He was already waiting at the doorstep for letting us in and the apartments was very clean. Don't expect a lively, decorated place, everything is sleek and functional.
We had enough linen and towels for the three of us.
The area is perfect for a trip to Rome, everything is in walking distance (City Centre, Piazza Navona, Trastevere, Vaticano etc.) and Campo de'Fiori is just a few steps away - so, perfect location!
The only down sides we experienced with the flat were the noise from the street which can be pretty loud on weekends and evenings and the temperature in the apartment was pretty low (we're used to the cold). I guess it was abnormally cold in May and the heating was already off. Water in the shower was sufficient for three people, but no longer showers were possible.
All in all, great stay at Federicos, thanks!