We had 6 days in Rome and were very happy with our stay at the quite big apartment right in the middle of town. You can easily walk to all major sights and attractions. Good restaurants near by as well.
It’s definitely true what others said, that it does get noisy in the evening because of the restaurants close by. But again you are right in the middle and that’s the price you pay. We visited in March, and just two nights (Fr and Sa) were very loud, but the other ones were ok. So just bear this mind. Again, we already knew this before booking and I would def stay at Papa Carlo‘s apartment again if we could!
Loved our stay there and can only recommend!