I stayed in Paola's apartment for a week to attend a conference at the auditorium Parco Della Musica. I found Paola's apartment to be very cosy, sparkling clean, and very well located - it was close to the conference site, which was on the city outskirts, and still at a 20 min walk from the Piazza dei Popolo. At a walking distance from the apartment you can also find small grocery shops, bakeries, and restaurants.
As a host, Paola was just super! Due to some troubles with my arrival flight, I missed our agreed check-in time for almost two hours. Paola nevertheless waited patiently for me, and received me warmly into the apartment. Additionally, she was always easy to contact and provided me with great tips for my Rome stay.
I would definitely consider Paola's apartment for my next Rome visit!