Marie was an excellent host, the apartment is beautiful, just like the pictures, very well equipped and the attention to detail that Marie had for our specific needs (we traveled with a 2 year old) was extraordinaire.
On the negative side, the neighborhood is not the best, during our brief 3 night stay we saw 2 police raids nearby while waking to the subway and on nights you could hear from the second floor bedroom yelling and some fights on the street.
To summarize, the apartment is beautiful, Marie is an excellent host, I just wish that it was located on another neighborhood.