I lived at Matthias' place for a month and it was perfect. The place is well equipped for a longterm stay and very clean. I enjoyed the beautiful view from the top floor. It is located in one of my favorite neighborhoods in Paris, and walking distance to most everything you would want to see. I barely used the great metro system while I stayed here in Paris this time. Communication was great. I did not meet the host, but he kindly checked in on me throughout the stay by message to see if I needed anything. There isn't any elevator so be ready to carry your suitcases up five flights of winding stairs. I didn't mind the exercise but it's good to know for others not so mobile.