Never Really had any issues with cleaniness. Seems like most of the time they will put a clean sheet over the bed then once finished they take it off get rid of the used towels etc.
cleaniess is the first priority
I think an unclean room is the biggest turnnoff
How about finding a strange man (or homeless guy) who stunk so badly (probably didn't wash for a few days) hiding in the corner of the room after entering the shop using the rear entrance? Imagine the girl having to go with him? Run for cover boys and girls and bring out the air freshners!
Yeah I visited 5 star once and nothing really beats ginza/479