My husband and I spent one month in Paris at Emmanuelle’s place. In short, the apartment was a great little space in Paris that happily met our needs. A big perk of staying here is that every Wednesday and Sunday there is a local market (farmers market) right outside the building‘s front door, where we purchased any groceries or goodies that we would need for the next few days. Despite the ongoing metro strike (longest in history for the country) we were able to get around town very easily due to the apartments proximity to several different bus and metro routes. When the metro was in service the noise was not an issue; very quite despite being right outside the door. Emmanuelle herself was very helpful as well. She was polite and quick to answer any question that we had about the apartment or the city itself.
That said, the only major downside, according to my husband, was the lacking internet speeds - at best 1 MB download. He figured that he would be able to leech off of the restaurant/bar downstairs but due to being on the 5th floor was unable to pick up the signal. Best to stick to cell service if you have it, if your browsing from the apartment.
All-in-all, I (we) would definitely recommend this quaint little apartment to anyone staying in Paris.