Saskia's apartment is incredibly well located right in the heart of Paris. Within 5 minutes there are: 2 metro stations (St Michel and Odeon), loads of bars/restaurants/cafes, a pharmacy, grocery stores, other shops, Notre Dame cathedral, and the Cluny musuem. If you want to choose a place for its location -- this is it.
Saskia was very responsive and communicative before and during our stay. She met us at the apartment for check in and check out, and was also very flexible about timing.
The apartment is very well equipped with the essentials -- soap, shampoo, toilet paper, extra towels and pillows, and the kitchen has a coffee maker, utensils and plates/bowls, and the little things like salt, sugar, and olive oil for basic cooking/food prep. The TV in the main room is connected to basic TV and internet apps (was essential during the world cup).
The bedroom has a comfortable double bed for 2 adults. Attached to the bedroom there is: 1) a small adjoining room (no door in between) that has a child's bed where Saskia also kindly setup a cot for our baby, and 2) ~10 steps up to a lofted space where there's another bed. If you need totally separate rooms with a door for privacy/a child/another family member, it could be a challenge, but it worked totally ok for us. It was also very warm in Paris when we were visiting (~30c) -- thankfully Saskia provided a powerful fan -- but it would have been difficult to use the lofted space had we needed it.
We'd definitely recommend staying here, and we hope to be able to again ourselves!