Caterina is an amazing host and her apartment is super lovely. She was kind enough to come find us when we got a little lost upon arrival and walk us to the apartment. She also arranged for an early morning taxi for us to the airport. Her son is also very nice and gave us a good dinner reservation. They live across the hall so it's very convenient if you need to ask questions. The apartment is specious, impeccably designed, and very comfortable. It's a short walk to the Cathedral and the Old Quarter sights.
I would highly recommend staying with Caterina!