OVERALL: 5-stars. STAY: 3 nites.
PROS: clean, very responsive and clear communication by host (in English), use of washing machine and drying racks, excellent proximity to the center of Paris, strong wifi, helpful/supportive host, nice evening/night breezes through courtyard window.
CONS: courtyard presently under renovation (work noise only during business hours), courtyard window may need to be closed at night due to loud voices from guests at other residences that share the same courtyard.