This listing does NOT have air conditioning. It is stated in the amenities, but it is NOT included. I stayed in early July when the temperature was 90 F the entire week and I was very, very disappointed.
However, everything else about the listing was great. The photos do not do the place justice! It is very large and spacious, with the perfect amenities including a washer, full kitchen and good wifi. The place is about a 10 minute walk from the RER A and the M9 metro line, which will take you right into the city centre. There are several supermarkets nearby and great bakeries in the neighborhood. The host was very responsive to messages and we had a wonderful stay.