I had an excellent experience staying at Giulia's loft and would definitely recommend it. My review is divided into comments about Giulia as a host, and about the loft itself.

Host:
Giulia is a great host and very easy to work with. She is very responsive and professional. She also goes above and beyond by providing a detailed pamphlet detailing public transportation routes to key sites in Rome (e.g., Colosseum & Roman Forum, the Vatican, and the Trastevere neighborhood). She even helped me book a taxi back to the airport after my stay.

Loft:
The B&B is located within a private courtyard in the Pignetto neighborhood - just east of Rome's center. It is a modern European-style loft, and the descriptions / photos are very accurate. There is also a large framed map detailing Rome's bus/tram routes (just left of the staircase to the loft).

It is also very peaceful (quiet), despite being near main streets. I slept very well here. Lastly, the B&B includes a moka-style coffee maker (complete with plenty of coffee grounds to use - as a coffee drinker, I really appreciated this).