I stayed in one of May's private rooms. They were pretty small in size, which is to be expected in Hong Kong. The rooms were functional with AC & Hot water & a TV. Check-in was relatively easy.
The only questionable thing that I want to point out is that the rooms are within the Chungking Mansions complex. This complex has a number of hawkers on the first floor and an overall sketchy vibe. Expect to wait in line to use the elevators at key times, as they are slow and small. I mostly used the stairs, which was fine but not ideal for when trying to move luggage.