First, BIG thanks to Mr. Virgilio on nice warm welcome and everything he has done for us. :)
The apartment is clean, spacious and close to the center. With bus lines 360, that goes to the Termini station, you can reach any part of Rome. There are a few bus routes that you can use (628, 665 etc), but this is best because the starting point is just a few minutes from the apartment, and exit station is 3 meters from the building.
I definitely recommend this accommodation to anyone.