Great stay in Rome at B&B Girovagando. The room was large, comfortable, with a modern and cool design and a cosy bathroom. Despite it's a B&B with nobody at the front desk, service was faultless during the whole stay. The room was located on the courtyard, so it was quiet. Check in and out were easy and everything was fine.
The A/C wasn't very effective, maybe something needs to be fixed with it, but we could open the window, it wasn't that hot at that time.
Breakfast is served at a café nearby and people there were nice, so that wasn't an inconvenience.
The only problem is to find the parking because they don't have one, so you need to go to a private parking which is not so close and most of all, complicated to get to with the car from the B&B. There you have to negociate the price for the whole stay, leave the keys to the guy and just hope you'll find your car when you're back. But that's quite usual in Italy, so no other options as finding a parking spot in the neighborhood is impossible.
Otherwise, Prati is a perfect place to visit Rome with the Ottavio metro station very close, you can also walk to many important places like St Peter's basilica, Sant'Angelo castle and Centro Storico, and you can find lots of shops and restaurants nearby, that was perfect.