Richards apartment is in a very cool location for its pricing, is is located on the side of Marais (15-20min walk/10min bike) and the apartment itself is quite nice although it is missing a lot of equipment like a hanging rack for jackets, a place to store shoes, a cutting board, sharp knifes and pots and pans that can hold enough food for more than 2 people.
The communication was good except for when we locked ourselves out of the apartment one night: the host had previously stated that there would be a second pair of keys available in case of emergency, but when we contacted him, he could not make it possible and we had to call a locksmith and pay over 100€ ourselves.
We (4 people) stayed in the apartment for a month and we were able to live there quite comfortably although we did not have a lot of space since the apartment usually fits 2-3 people. The metro is very close just as a Velib Velo station. There are multiple supermarkets and washing salons, that are very close.
We enjoyed our stay very much except for the one problem with the keys.