We very much enjoyed our stay. It's a great location, with a grocery store (A2pas) right across the street (with baguette), and metro just down at the end of Claude Tillier (4 minute walk). A number of sushi places within a five-minute walk, as well as an Indian restaurant and a bar.
Though we did not meet our hostess, Mercedes was very responsive. Excellent service from her.
As some suggestions, if you are a light sleeper, recommend to bring earplugs as there are loud motorcycles revving their engines as they go by until all hours of the night, including on weeknights. As well, the pillows are rather flimsy so you might want to bring your own if you are used to a firmer pillow.
Highly recommend staying here if in Paris!