This place was perfect.
We had a family of 5, all adults, and we had plenty of space in the flat. Christophe was so easy to work with and was very responsive to any and all of our questions and inquiries. Calling the flat charming is an understatement! It also had a very homelike feeling to it. The front of the flat was a little noisy at night, but it really was just "sounds of the city". The weather was very warm during our stay, so we had to leave the windows open, but when they were closed, much of the noise is silenced. Access to the Metro is easy, either at the stop right outside the flat, or at Gare Du Nord which is very close making this an ideal location to explore all of Paris.