I stayed in Louis's flat for over a month. It is quite simply an incredible place to stay while exploring Paris. The flat is charming, comfortable, and very quiet. It's located on the 4th floor of a building so you also benefit from a stunning view of Paris looking south. The apartment has really great touches - the furniture is nice, the beds are incredible comfortable, and there is a great sound system and projector for listening to music or watching movies. Louis was also incredibly helpful, quick, and flexible throughout my stay. He really cares that his guests are enjoying their time in the flat.
If you haven't been to Montmartre, it's one of the most charming neighborhoods in all of Paris - and the flat is well-located to explore the neighborhood. Many great boulangerie's and restaurants within easy walking distance.
I just cannot recommend this flat enough and look forward to staying there again the next time I'm in Paris. Thanks for everything, Louis!