Adeline's place is great! We have a stayed in a few airbnbs in Paris, and this was was easily the cutest.
No a/c was a concern of mine prior to the stay but we arrived as the weather started to get warm (in the 70s and 80s) and the apartment was plenty cool during the day and night!
We found her place to be spacious and well designed. As mentioned in other reviews, the wooden floors do allow you to hear the upstairs neighbors which wasn't a problem during the night but was pretty much constant when were around during the day.