Great location when staying in Rome, really close from the Colosseum and Roman Forum (max 10min walking); many bars and restaurants in the area.
The flat itself is big enough for 5 for sure and with 2 bathrooms; the rooms overlooking the street can be a bit loud at night, kitchen is a bit small if you are planing on cooking but it was more than enough to make breakfast. I would definitely recommend it when in Rome or go back myself.