Wonderful flat, very clean, stylish, comfortable and well situated. There was a bit of noise, particularly in the front bedroom at night, but we had read this in the reviews, and so were expecting it - and it was not too bad overall, and not all night.
The hosts were very flexible, allowing us access to the flat as we arrived a bit earlier than expected. They also arranged for a minibus to pick us up from the airport, as we were 5 people with lots of luggage. Good communication.
The location is excellent, just moments from the Colosseum and other attractions. Also some very good restaurants locally.
Overall a lovely base for exploring Rome.