I have a hard time giving a good review of this BnB because I truly want to keep this for myself! We stayed only for a couple of nights but Federico and his family were incredibly accommodating and you really can't beat the location, the flat itself, or its proximity to Rome's best. The neighborhood is lively, so be warned - if you have an extra early wake up and connection, you may want to bring earplugs just in case.
The host was super helpful and responsive to odd check in and check out times; he was great about explaining all the quirks of the apartment (all energy saving and safety things that Americans are likely not used to); and the apartment is very clean, comfortable and tucked away down a quiet (for the neighborhood) street.
The neighborhood is a little out of the way, but if you're a walker, it's definitely convenient. 15-20 minutes to the Colosseum and Roman Forum, maybe a 20-30 minute walk to the Vatican, and only a couple of miles to the Spanish Steps and Trevi Fountain. Bring comfortable walking shoes, but it's an amazing area to explore!
I really can't recommend this accommodation highly enough. We'll definitely be back!