This apartment is great! It's blocks away from notre dame, close to a market with fresh food, and about five metro stations nearby. Christian's wife met my cousins and I when we arrived and she gave us a tour of the place. The apartment was well kept and clean. The only issue we had was the water wasn't hot on the second day we stayed there. I emailed him, with a timely response he emailed back with instructions on where the electrical breaker box is and which fuse to check. I didn't want to leave Paris in the first place and this apartment made it that much more difficult because of how nice it is. Overall, I'd recommend Christian's apartment to anyone and urge them to stay there.