The flat of Antonella was great. It's big enough for 4 adults, and the kitchen is little but OK to cook pastas. We liked the foodstuffs on the table for the breakfasts (and other in the fridge). The place is really wonderful, just in the heart of Rome. Antonella was super reactive, and answer very quickly. A few dust in the double room, but nothing serious.
Just a note : the flat doesn't have elevator, and is at the fourth floor, it worths a 6 or 7th floor in parisian buildings. But when you're up, the view is just great !
So I recommend this flat !