The studio is cozy, with a comfortable bed, and located at a great spot. It's very close to metro line 1 which is the most useful line for tourism in the city. Several nice bakeries and groceries and a small supermarket (G20) are nearby.
We stayed a week there and Isabelle had been very helpful and always replied our email questions promptly. Although the toilet was outside the studio, it's just next door and always clean. We enjoyed our stay there.