If you are in search of a peaceful place to stay that is in comfortable walking distance from the Gare de Lyon in Paris, consider staying at Xavier's place. It is a spacious unit with beautiful wood floors that is well appointed and bright with plenty of sunlight. The bed was wonderfully firm. One must be careful with the water in the shower because the water is in reverse, hot water comes out of the side labeled blue, and cold water comes out of the side labeled red.
Le Viaduc des Arts with it's arches and overhead park are some of the special features of the neighborhood.
Xavier was VERY responsive and communicating with me in a timely manner. I did not meet him as I was greeted by his friend Marie instead.