The apartment was amazing and had windows that overlooked the fountains where people gathered in the evening to socialize with a Spritz or Peroni. The location allowed us to walk to all the places we wanted to go...whether it was the Colossium (5 minutes) all the way to the Vatican (50 minutes). There is a also a great Gelato shop named Fatamorgana filled with locals that is a 2 minute walk down the side street.
One word of note...people tended to socialize down by the fountains until 2 or 3 am. This background noise didn't bother us, but I could see how it could be to others