Before I comment on the location and the stay, I wanted to acknowledge Emma for her prompt replies to my queries and for constantly following up. She even provided things to see and do during the stay. A great host!
The flat/studio was exactly as shown, consistent with all the other reviews. Spacious and certainly enough to sleep 4+ comfortably. The location is by Rue Saint-Joseph, a lively nightlife spot. The old city is a 15-minute walk and has many ways to get there; we spent 3 days wondering about different parts of the city. Electric bikes are conveniently located if you choose not to walk.
The washer and dryer and fully functioning kitchen with appliances, pots, pans, and dishes made the stay more like home and avoided the need to eat out all the time.