The place - spacious (4 adults), bright, clean, lots of amenities. Spent a week there. We could have easily spent a whole month.
The location - if you don't insist being in central Rome, then it's great - metro station 20 m away, pizzeria downstairs, caffeteria and bakery within 100 m, supermarket 5 mins away. Great restaurants within 15 minutes walk.
The host, Pia - wonderful. Always there for you when needed. If you plan having dinner in Centocelle, please ask her for recommendations. You won't regret it, trust me.