Alain was there waiting for us at the apartment when we arrived. He is extremely nice and helpful. He gave us plenty of suggestions for the best restaurants in Paris in a variety of price ranges, and he responded quickly to questions during our stay.
The place itself is small but comfortable. The interior is stylish. Everything was clean. I'm 6'6" so I had to do some ducking to get up and down the stairs, but all in all it was a comfortable stay, even with four adults.
The apartment is in a perfect location. Notre Dame is a short 8 minute walk away. The apartment is also right next to the Cluny Museum, which I wish we would have taken the time to visit. There are also plenty of markets and eateries in the area, including some of the best croissants in Paris.
All in all, Alain and his apartment were the perfect welcome to Paris and an excellent way to start our trip.