I have spend four days at the apartment with my wife and my two kids.
It lies on a quiet, charming street, very close Rome's main attractions, like the Piazza Navona and the Vatican. Supermarket, shops and good restaurants are just a few steps away.
We loved the place: it is spacious, modern and is nicely designed.
My kids slept on the sofa bed, which is large and comfortable, so don't worry about if you have to use it.
Definitely recommend!