Alexandre's apartment was one of my favorite accommodations in Paris, after I stayed in a few different Airbnbs during my trip. The apartment is small but very functional, with a nice desk in case you are working remotely and a comfortable sofa bed. I appreciated that the kitchen had some extra pantry items in it and the shower head was quite nice.
I really enjoyed the location of this apartment - it is at a place where multiple subway lines cross, so you can get anywhere in Paris quite easily. You are also a 5 minute walk from the Canal Saint Martin, where there are nice restaurants that are not very touristy and have great food. Do keep in mind that the neighbourhood is more working class and so you may stand out if you look too touristic. I did not have any issues even when I was arriving home late at night as a young woman alone, however some people may find this less comfortable.