We stayed at Federico's apartment for three nights in mid- November. It was exactly as pictured, clean, and had everything that we needed, including an espresso/cappuccino machine which I made use of. The bed and couch were comfortable and we were provided with several bottles of water, a carton of milk, snacks, and fruits. We also relied on the handy city map that was provided to us to get to each of the key sites. Two bus tickets were also provided, which was a nice bonus. We explored the city on foot but the apartment is close to a tram that ran frequently throughout the day and night.
We did not meet Federico as he was out of town but his father and staff members were very friendly and helpful. We arrived earlier than expected but they greeted us and we were able to drop off our bags and explore the city with some helpful hints. The airport pick up was an excellent touch, especially since we arrived by an overnight flight.
We also tried several of the recommended restaurants. Da Poeta (pizza) was fabulous and about a 10-15 minute leisure stroll away from the apartment.
Also, the Trastevere train station is a 15-minute walk away, convenient for us since we needed to get to Tiburtina station to catch the train to Florence.
Overall, we had a good experience and Federico relied promptly to our questions. We would recommend the apartment without hesitation.