We had a very good time at Casa Winkler. The apartment is located very close to the Vatican and the Castel Sant’Angelo, there are lot's of restaurants around (I'd recommend Mama' Ristorante Bistrot), also a supermarket and other shopping options. It's very well equipped, tastefully furnished and very clean.
Luigi and his dad were very friendly and flexible with all our special wishes (..3 girls...) - they were magnificent hosts! Thanks a lot!