The apartment is located in the heart of trastevere; easy to arrive by car and walking distance to the rest. We were 7 people and all bedrooms were in use, leaving no common space for us beyond the kitchen. Not s problem for us as we spent the time outside, but worth noting if you are many people.
There is also a checkin fee if you arrive after 21.
They were very welcoming and helpful with AirPort transport, the rooms were clean and beds good (firm)