I would 100% recommend Federica’s appartment. It is in the lively area of Trastevere with lots of choice for affordable restaurants and bars. About 30-40 minutes walking distance to all the tourist sites. Check in was incredibly smooth - Federica contacted me beforehand with really clear instructions and advice for transport. She was so responsive to our messages and always on hand to help. And she left us some treats and drinks in the appartment!