Federica's house is really beautiful, with and special charm. The ceilings are incredible and is everything as in the photos. Really clean and with two good bathrooms. The comunication is really easy with Federica and that's a point to focus on. The only litlle problem was maybe the noise of the street. For us it wasn't a problem due to we were really tired and we fall sleep immediately, but if you're planning to go like one week to relax, it will be noisy.
Anyway, the location is good, just 3 minutes to termini station where you can catch the train or the bus, but is well located and you can walk to the main interesting points without using public transport.
Federica also recommended us lot of place to visit and she was really kind.
Thanks for all :)