It was great staying at Arthur et Lucille's place!!
Great neighborhood, very calm and safe, even at night, but at the same time close to the city center (metro line 4). Also, very well connected to the Orly airport, the Orlybus stop at Denfert-Rocherau is just 4min walk or you can also catch the metro+RER B at the end of the street.
The apartment is brand new, fully equipped and curated in every detail. It is just as it looks in the pictures. Also, it is very quiet at night.
Arthur and Lucille have been extremely nice and responsive. We arrived late and they were very nice in arranging a solution for us to collect the keys.
Net-net, a strongly recommended solution for your stay in Paris!