Alize's sister Zoe welcomed us, and she was great roommate! We really felt like at home.
Zoe is helpful and friendly. Place is like on pictures and in great neighborhood, 5 min walk from "Arcibasilica Papale di San Giovanni in Laterano" (highly recommending), there is a main metro line nearby, and many cool restaurants and coffee places. Also, Pigneto neighborhood is near, for those who like urban art and places. We're definitely coming back to Rome, as soon as possible, and will stay at Alize's (or Zoe's) place again if it's available :)