Nick was great with communication and helping us check in. They also were very kind and let us wash a few items in their washer.
Their flat is about a 10- 15 minute walk to Paris' most elegant opera house, Palais Garnier. We were seeing a show there which is why we chose to stay at this air bnb.
This flat is also close to Mulan Rouge and Montparnasse area, although we did not go there so cannot give walking estimations.
It was incredibly hot when we were in Paris (98 degrees) and they did not have air conditioning, but Paris is not usually so hot so you cannot expect that.
The bed is extremely hard and not comfortable, and the bathroom was not well cleaned when we arrived (other guests garbage and mould). I mentioned this to the hosts and they said they would try to do better time. Hopefully that's true and you have a good experience!