I stayed at Barbara's apartment for a few months as I was in Rome for business.
The apartment is super clean, brand new and has everything you could possibly need. The kitchen is fully equipped and has everything you need to cook. The bedroom is large and has more than enough storage space. The balconies are also very nice with a great view of the Vatican. In the morning you have a beautiful sunrise over Rome. The apartment is also located in a quiet building with friendly Italian neighbors.
Barbara is also very friendly and will help you with everything you need! She responded to everything on Whats-app within a few minutes. She also made sure there were some things in the kitchen when I arrived like cookies, pasta, olive oil, herbs and spices, water and some other things in the fridge. It was very welcoming to arrive this way.
The location of the apartment is a bit outside the city center, but you can take the metro after a ten-minute walk to arrive in the center after a 15 min metro ride. The benefit is that you are completely outside the touristy center and find some excellent real Italian and cheap restaurants nearby. As well as many supermarkets, local food stores, clothing shops near metro station Cornelia ... etc.
So in short a had a great experience staying in this apartment with absolutely nothing bad to say!