Sophie's place is a great base from which to explore Paris! The location is perfect: an artsy neighborhood with lots of great cafes, only a few minutes by foot to the river, right in the center of the city.
I didn't get to meet Sophie in person, but she gave perfect instructions on how to get in to the apartment and always responded to messages quickly.
The apartment itself is small and basic, in an old building with a lot of character. The toilet is indeed separate from the apartment and shared with the other resident in that floor, but we never saw the other person and had no issues with this arrangement. Overall this is a great place at an absolutely unbeatable price for the area. Thanks, Sophie!