Me and my friends were super happy with our stay at Serena and Nicolas' place. The basement flat was very clean, bright and spacious. It has the perfect location as it is very close to the Vatican and the Ottaviano metro station, yet far enough to be removed from the tourist crowds. It is situated in a quiet residential neighborhood with plenty of good restaurants around. Serena was very welcoming and provided useful tips for our stay in Rome, as well as guide books we could borrow. There were also some snacks in the kitchen when we arrived :) All in all, we would definitely stay with Serena and Nicolas again and can wholeheartedly recommend them to anyone visiting Rome.