Gianluca and Sabrina were great hosts. Both of them waited for us for the check-in and showed us their place. They gave a lo of advices (places to see, restaurants, etc.) and all of the things we tried were great.
The flat is about 5minutes walk from the subway station (which allows to reach all of the main tourist points within a few minutes) and just 10-15 minute walk to the Vatican and the Vatican museums.
Gianluca nd Sabrina treated us like friends and not just as guests. They gave us their number and asked how we are doing.
If I ever come back to Rome, I would chose their place again for sure.