As many have said before- I can't think of a better location. Many sites located within a 30 minute walk, not to mention the Seine is only a couple blocks away- perfect for grabbing a bottle of wine and relaxing on the banks as night falls and the city lights up. You step outside the apartment and have multiple grocery, bakery, gelato/glaces, and dining options within a 5 minute walk...some of these options are within 60 seconds! Again, this is an AMAZING location. As busy as the area is, closing the windows isolates most of the noise from the street below and the rear located bedroom is almost completely voided of noise.
The apartment is very secure with two coded self locking doors to get through. It does get pretty warm in the apartment after a day of sunshine, but the provided fans and cracked windows help in knocking down the temperature in the evening.
We will definitely stay again on our return to Paris.