K9 Myeongdong is located on the 4th and 5th floors of a building right at the beginning of the night market, so we barely heard any street noise. We stayed in a quadruple room, similar to what's shown in the property's photos, and felt we had plenty of space. The a/c worked great, room was clean, free use of laundry facilities, and cook your own breakfast. Will definitely stay here again.