We very much enjoyed our stay in Sebastien's apartment. It's wonderfully located, several metro stations and the main streets and shops of the Marais are in close walking distance. The apartment itself is beautiful, spacious and well decorated (as you can see in the photos). When we had questions/issues in the apartment, Sebastien and Michael were very helpful and took care of them immediately. A minor suggestion for improvement would be the kitchen utensils: in case, you intend to use the kitchen for cooking, it is worth noting that it's relatively sparsely equipped.