Tried to stay in this hotel last month as I was in transit in medan. There were several rooms online so we went straight to the hotel. Staff is useless, unprofessional, do not speak english, giggle at your face, ignore you, mess up guest reservations who are forced to search for something else in the middle of the night. They only care about the airplace crews arriving late at night.
Do yourself a favor and go straight to Thongs inn (there arent many other choices near the airport). For the same value you will have a much nicer, professional experience.