Jean-Charles was a great host, and his communication was great. The place has an instant-book option, and Jean-Charles personally meets you to show you the place when you check-in.
Overall the place is nice, and has good amenities for your stay. He also has maps posted for the transit system, and ones for you to take, if needed. Compared to other places I have stayed for a similar price, the apartment didn't have the space or the same home feel, with books, furniture and other features that I am used to with AirBnb. The bathroom also feels a bit like an unfinished addition to the space, with exposed plumbing and unfinished walls. However, overall the placed served its purpose as a place to sleep.
Additionally it is very secure like most places in Paris, with a large secured entry gate, and two secured doors that follow. The apartment has a key-fob system for the gates which makes it very convenient to get in, so you don't have to remember a code.