The flat is very comfortable with all the amenities you would want. It is situated within a secure and quiet courtyard and if the weather is good, the possibility of eating and relaxing outside makes it special. We had excellent nights' sleep and it almost felt as if we were in the countryside.
The hosts are charming and had genrously left provisions for our use, including macarons, bread, butter, jam and juice, so had a great first breakfast. They were responsive when needed but not intrusive and we are planning to stay there again on our next trip.
The local area has many good quality food shops; a butchers, cheese shop, a large fresh fruit and vegetable shop, as well as several boulangeries on rue Tolbiac.
Transport is good with a bus stop right outside and 5 minutes to the nearest Metro which is a fast line right into the centre of Paris.