The location is certainly surprising! We couldn't believe it was this close to the Eiffel tower, it is also in a very nice and reachable neighbourhood for metro, bus, and even cabs.
The host was very helpful when we checked in, he might just not seem very friendly on phone or online, but that's just a wrong impression :) Will definitely recommend it to any couple going on a sightseeing trip to Paris.
The only thing you should know is that the elevator is REALLY small, like 2-people nose to nose / claustrophobic small, so travel lightly when you rent this place.
You will be missing the microwave and the washing machine, but other than that the place is really nice.