The stay was wonderful, there is everything you need for two persons (bed large enough, towels, desk, cupboards, etc.) and it's very very, very, clean. All in flat in white colour. The flat is located at a high point of Rome, up the Trastevere, so you must have good legs and feet, we are 29 years old and we go fro 4 days by foot:). From flat to center or vatican very the scenic route. On the mountain there is an observation deck where all city at a glance.
Giovanni is very nice (quiet fnd staid) and gives good infos.