Not surprisingly (because we also picked this place because of the great reviews), Sébastien was a fantastic host and the apartment was exactly as described. We stayed for a month and Sébastien was mostly out of town but always immediately available when there were questions or problems especially during the settling in period. We know Paris very well but I have the feeling if we had wanted more help or tips, he would have been more than happy to provide them.
The house is very cute, with simple/rustic furniture but comfortable, and a good bathroom and decent kitchen (hard to find in Paris rentals). It is on the top floor, and while the street side is quite noisy (lots of scooters etc.), it is possible to close the windows and still get air from the courtyard windows. Usually it was very comfortable but there was a 10 day heatwave, when the temperatures soared to a over 35C/95F, which made being under the roof insanely hot! After a couple days, out of desperation we decided to just buy a small AC on our own, and give Sébastien the option of buying it from us after, for future guests, otherwise we'd give it to friends after. He immediately positively responded, so we went to buy one and discovered that literally all small AC units were sold out across Paris! So he went out and managed to find the last AC where he was staying, and brought it to us the next day! This made him our hero, and puts him well beyond what most hosts would be willing to do for guests. And the good news is that now there's an AC for you in case it gets hot!
The location is perfect, one of our favorite neighborhoods, close to many possibilities with public transport, but also great just to walk, with many surrounding restaurants and bars, and also many options for groceries/take-out. Also very good internet!
Overall we had a great month stay, and would definitely stay again. Thank you Sébastien!