Good and welcoming host, 5 mins walk to Ximending and metro station. Just beside a hotel, after entering the code on the door, walk up a stairs and enter another code on the 2nd door. Upon entering, may hear dog barks behind a door, ignore it and go up another stairs to the 3rd level where you remove your shoes. Then go up stairs again to your room on the 4th floor. If in doubt, can contact the host, he replies pretty quickly.