The apartment was just large enough for our group of 5. I can not imagine a larger group comfortably staying here. The main living area (kitchen/living room) was fairly compact and the couches were small. The kitchen also only has a hotel sized fridge, so do not plan to stock up a full sized fridge with goodies.
The location was very central - a ride to the Louvre, or Eiffel tower was only 20 min away on the metro. Lots of shops, cafes and action right outside the door. For those traveling with children, I would caution selecting this location as the street is lined with multiple sex shops and hourly hotels. There was a very cool mall one block away from the flat, which was convenient.
There was no flexibility when it came to check in or check out times, even despite coming in the off season. On the day of our departure, a woman rang the door bell at 10:45 am and demanded we return the key immediately, even though check out wasn’t until 11. Not a very warm way to wrap up our stay.