Matthieu's apartment is as lovely and nice as on the pictures. Stylish and of course Parisian. Check-in is contactless and quite high-tech. The location is perfect. Between two subway stations, few meters away. Montmartre can be reached by a 5-7 min walk. There are also supermarkets, organic stores, bakeries, cafes around the corner.
Matthieu is a good host, who let you enjoy your time in Paris but can be contacted anytime in case of questions or problems.
I'd definitely come back again :)