The communication with Ulrich always was quite nice and easy. The pickup and dropout of the keys of his flat were also easy. The place is located in the near of a nice metro station (Lamarck-Caulaincourt) and from there is easy to reach almost any part of the city! The place has the basic stuff to stay for a few days in Paris, it is clean and comfy, in a very quiet building. Enjoyed my time there, and Ulrich always answered quick all our questions. Totally recommended and I will go there in the future, when possible!