Djibril's apartment in le marais was exactly as described in the listing. A quiet home in the back of a beautiful old courtyard just a block away from almost anything you could want (metro stop, shops, many excellent restaurants). My 9 year old daughter had no issue walking to the metro, le centre pompidou, and the louvre.
The apartment itself was as expected, clean, comfortable, with a full kitchen. The bed was certainly large enough for two adults (a small concern for us going in as Americans used to larger beds than what I had seen in Paris listings) and comfortable. The bathroom shower / tub might be a bit small for adults, but wasn't a big deal at all. Perhaps the only complaint I can think of is the bathroom is located far from the bedroom so if you have other guests using the pull out couch bed you may disturb them when using the bathroom at night. We struggled slightly with our luggage going up two flights of stairs in what is a pretty narrow, older, winding stairwell. But this is mostly our fault for overpacking to be fair, just know that walking up and down the stairs on your own is easy, with a 50 lb suitcase, not so much.
Our host, Djibril, was extremely friendly and helpful. He went out of his way to find us a third chair for the small dining room table, he had great suggestions for restaurants, boulangeries, etc nearby. When my partner felt sick he dropped by with some medicine from the pharmacy knowing we might not be sure which to get. He even called a restaurant on my behalf to check on our reservation because my French wasn't adequate for the phone call. Worth paying extra to have someone so helpful and knowledgeable as an asset, especially for us on our first trip to Paris.