I had a wonderful stay at Sabrina and Roberto's Airbnb. The accommodation is exactly as advertised. Sabrina was very welcoming and offered great advice for my first night in Rome; the views from Belvedere del Gianicolo were some of the best in the city.
In short, a solid recommendation for budget-travelers. The only caveat worth mentioning is the location, which is tucked away from the city center (albeit on a lovely and quiet street). Personally, I love to walk and explore the streets of cities, which made the location suitable for me. But be prepared to walk and/or use transit and know that Rome's public transit leaves much to be desired.
Thank you again Sabrina. Ciao!