The studio is very well-located in a lovely neighborhood and is probably ideal for a short stay but I would not recommend it for anything longer: paint is chipping off from the wall and the ladder up to the bed, there's mold in the bathroom, the sofa-bed is very uncomfortable and there's often a lot of noise coming from the street and the neighbors at night. Bit expensive for what it is, even for Paris.
Still, Merci Alice was very nice and accomodating througout the trip.