Disclaimer: I know the area since I've been there multiple times so not going to mention much about it apart that the flat is close to tramway stop connecting to the city center in less than 10min, close to wine museum and many good restaurants in that renewed area of the city with schools, businesses and shops. And close to the riverside promenade taking you to city center.
Now about the flat: pristine clean, awesome view (lots of windows), fully equipped, spacious, very recent building and perfect isolation (temperature and noise: I could not hear anything from street/neighbours). Because of the weather outside I did not enjoy the balcony nor the building swimming pool ...
But as I know I will have to come back to Bordeaux, next time I will first check if Elna's flat is available and maybe it will be closer to summer conditions allowing me to enjoy even more the flat.
Last few words about Elna: someone nice, responsive, who will take care your stay is as good as one could expect.