Convenience to a metro stop is a prime consideration in choosing a place to stay for us, and this place was awesome. The location was perfect for the Metro, less than 200 meter walk away. It was close to a Pam market (about three blocks walk).
BUT even better, it's a short walk across the square to the 85 bus route, and once you are ready for adventure, riding the Rome bus system with a good map is a another great way to get around.
Wireless Internet worked well, there's a small lift (really small) to get up to the 3rd floor apartment, and things are quiet. The windows open, which is nice, and the street below is quiet, offset from the Barberini Square energy.
Also, a washing machine is a big factor for travel (minimizes amount of clothing to pack). There is one inside the cabinet in the kitchen. Like all front loaders, suggest you run a hot water cycle with a machine freshener tablet first, just to make sure your clothing has no residual musty smell in case it was not used in awhile. There is no dryer, but things will dry overnight.
Finally, there are plenty of dining options around Barberini Square, our favorite being Pepy's Bar. Good suggestions were provided in the apartment, too. T