The place is very easy to get to and although it's not completly central, you can easily reach all places in a couple minutes with the train.
With the help of Caroles neighbor, we got the keys without any troubles, although she only speaks French (which we did not).
The sleeping couch was comfortable and because it was very quiet, we could sleep very well.
The WiFi is very fast; I did a Speedtest and got ~310/60 Mbit/s.
There is a very cute cat. She is a bit shy but friendly and was a nice companion.
Communication with Carole beforehand was very good and she always answered with almost no delay. During our stay though, she was away herself and we has trouble getting in contact with her.
Having a kitchen was a big plus for us.