This Airbnb is in a great location with lots of sites nearby. Notre dame, Louvre are all walkable (20-25 mins) and there are some tasty Asian restaurants just down the street. (Chez Cay has good Vietnamese food)
The downsides are the stairs - 4-5 flights so it makes it a big deal to leave the apartment, and the heat in the summer. (No air con so the attic is the hottest part of the building). The host was very responsive though and helped us get another fan to help beat the heat.