Initially we loved this apartment. It's in a central area of Montparnasse, and apart from some ambient traffic noise, it's perfect. It has a close view of the Eiffel Tower from the living room (closer than pictured) and is beautifully decorated. Noralid was very responsive before and during our stay.
However, we had two issues during our stay. The first was that (contrary to the listing) there was no air conditioning available, which was in part why we'd selected the apartment. We didn't learn this until check-in; later the host told us that it was in the kid's room (locked during our stay).
The second issue was likely due to the month we visited (August); there was terrible construction noise beginning every weekday morning around 8:30 a.m., sometimes continuing until late afternoon. They were using power saws and hammering directly on the other side of the wall in the hallway, which made it impossible to stay in the apartment during the day (unfortunate, since we were all very jetlagged and my dad sick). When we reached out to the host multiple times about this, her response was that construction is a normal part of living in Paris. I would have appreciated more of a response to this and eventually reached out to Airbnb directly to resolve this.