The location is great - the nicest part of Paris, in my opinion. The apartment looks very nice with old beams and good decorations. It has everything you need including a kitchen, wifi, air conditioning, and a washing machine hidden in a corner. The living room is very comfortable to sit in, and the bed is in a cozy little room upstairs. The manager, Julien, was very helpful with the check in.
One issue to be aware of, which is not anyone's fault but just the architecture of the apartment, is that there is a narrow spiral staircase to go up to the bedroom and shower, which might be challenging to navigate if you are not so young anymore or have a large body type. (It got better for me with practice.) There is also a narrow staircase to go down the toilet and you have to watch your head. Finally the apartment itself is up three flights of stairs (it's at the top of the building). So if accessibility is a priority, this might not be the place for you. Aside from that, it's great!