We had a great weekend staying in Phuc's place. The location is perfect for exploring the city; the majority of highlights are within 1km, so definitely walking distance. Besides, there are lots of nice bars and restaurants in the direct vicinity. The apartment is in the back of the building, so you won't have any noise disturbance when trying to sleep.
Future guests should be aware that the place is very small. We only used it for sleeping, but much more than that would have been inconvenient. However, when visiting Paris, why would you ever spend more time than strictly necessary within your apartment? It is such a great city!