Bertrand's place is a small but very well equipped studio, in a perfect location of the Marais. There are lots of options to eat, drink as well as plenty of supermarkets. We could cook our own meals at the place. We felt very safe at the building as well as in the neighborhood as a whole. It's a beautiful place!
The bed is VERY comfortable, which for me is the most important thing when renting a place. The washer works very well, the tv had good music channels, the heating was comfortable, and the internet was great too.
The only thing to note is that the apartment is on the 4th floor with no elevator. For us it wasn't a big deal, but I know that for some tourists, it is.
I would definitely stay here again!