Overall: great place to stay. Plenty of hot-water to shower, and the apartment was clean and tidy. Cute outdoor patio for meals. Even though the bed is a sofabed/pullout, it's very comfortable for sleeping. The street is a quiet one with no late-night crowd noise; while still being in the middle of the currently-trendy Trastevere neighborhood. It's a quick walk to the Vatican or Colosseum. Leo is a wonderful host, leaving us some fruit and little breakfast items; easy communication and very helpful.
Thanks Leo!