I would recommend Renaudon's flat, it's in a residential area, so it's very quiet, even it would take around 30 minutes to go to the city center, the price here is still unbeatable. Renaudon is very friendly, and she has a very cute cat. I have talked to her about wifi at night before, and she told me I just need to turn off the wifi before I went to sleep, so in this way I can still have wifi at night. Don't forget to try some Vietnamese food in Belleville.