This is a place for budget travelers who are willing to compromise for a low low price. The building this is located in (Chungking Mansions) is terrifying and filthy. Elevators are constantly broken down so you need to do a 5 floor trek through stale pee and sleeping vagrants to reach your hotel.
The room is around 20 square feet , but is long and narrow. I'm 5,10 and could touch both walls that surrounded my bed when lying flat. Be comfortable sleeping curled up.
The smoking room next to me constantly leeched smoke into my room through my ventilation system. A complaint to the manager resulted in less frequent smoke sessions, but I just got used to it by the third day. Bathroom smelled like sewage. Decent deal for the price and considering Hong Kong's hotel prices.