The location of this apartment was fabulous: Close to the Palais de Justice, less than a 20-min walk from the Midi station, and near all kinds of nice restaurants and bars (including one in the same building). I picked the place for its meeting table: my coworkers and I needed a place to discuss one day, and this apartment served that purpose well. For four people meeting, it was very comfortable. We could spread out on the couches between periods of work at the table, open the windows or step out onto the balcony when we wanted some fresh air, and the wifi was good.
I loved being able to have breakfast on the balcony in the morning, looking out over the street. Because I stayed Sunday-Tuesday, the bar downstairs from the apartment was closed, which meant I mostly had the building to myself—just me and the stacks of produce in the entryway! So unlike other reviewers, I found it to be very quiet and calm. Almost no noise at night, except for occasional sirens.
My only major complaint is about the door to the balcony: There is no handle on the balcony side, which is a reasonable enough security feature. But it seems like there ought to be a warning on the inside, telling you not to close the door. My coworker stepped out onto the balcony, closed the door, and had to be let back in. If I had done so when I was alone, I would've been in trouble!