I spent a wonderful week in Rome staying in Marzia's apartment! It's a very nice, quiet and cozy place with a hospitable host and comfortable location. The house is very close to the old city center, so all this time I was walking only by foot. The Vatican is in 5-10 minutes to go!
There is no kitchen and refrigerator in the apartment, but it's not a problem because there are lots of nice restraints and cafes around. Also just opposite the house there is a railway station from which you can get from or to the airport. Which is very convenient!
I didn't have a chance to meet Marzia this trip, but she was always in touch ready to help with any question!
So, I enjoyed my time in Rome, thanks to Marzia!