We did not spent much time at the flat but we were happy with our choice. The flat was clean, the room spacious. The location is perfect in the beautiful area of Trastevere. It's only a few steps from the local market. There are many great restaurants and bars only a few minutes walk from the flat. It is also quite easy to access from Ciampino airport: one coach ride to Termini station, one bus ride and a few minutes walk. Libera will send you all the instructions.
Although Libera does not speak English very well, and our Italian is very limited, we managed to communicate anyway. She made us feel comfortable, being so kind and welcoming.