We stayed two nights in Anne's apartment.
The good: the terrace is perfect! It feels private and a wonderful place to have a glass of wine and watch the street activity below. The location was also great, very close to the river and lots of places to eat nearby.
The bad: the street is quite loud if you're not used to being downtown, but the windows do block out all of the noise when they're closed. It was 25°C outside but heated up to 30°C inside when the windows were closed. Very hot for us and difficult to sleep.
We also ended up having to leave after only 2 nights because we found a mouse had eaten through a sealed bag of snacks, left droppings in my shoes and along the wall, and we saw one run rather close to my husband's foot while he was sitting on the couch. Anne was understanding of the situation, but asked to keep 80€ for cleaning and water/electricity. Airbnb ended up giving us a full refund, and Anne was very apologetic about the situation.
If she's able to manage the mice, it is a really cute place to stay.