Manon’s apartment was extremely well situated in the heart of Le Marais, only a few minutes to metro line 1, plenty of buses on the Main Street and plenty of restaurants and bars close by to pop into. It was clean and hygienic but it is very simple so don’t expect anything overtly luxurious. Mattress was pretty comfy but it’s is a split mattress on a fold out bed.
Overall for a quick trip to Paris I would stay there again!