We stayed at Quentin's when temperatures in Paris reached all-time highs in July 2019. We felt very welcomed by his attentive preparations and by his friend who gave us the key and showed us the place. The flat is really charming and large enough for a family with two or three kids. Turning on the ventilators and opening the large windows (Be careful with little children) helped against the heat. Nice plants, tasteful little details, many stairs, well situated in the 11eme arr. Definitely a recommendation.