We do pay a cleanliness fee as a part of the booking especially when you are paying a significant amount for staying in Downtown Seattle. We were requested by the host to load the washing machine with sheets and pillowcases and load the dishwasher and the explanation for that was " We usually don't get enough time to clean up before the next guest checks in".
It is your business to run in the most efficient way you can. Take a break for a day from checking guests in if there isn't time for cleaning, but to ask your guest in aiding with the process was not fun for us.
Very disappointed. There are other much better Airbnbs around. Please consider them! I will not recommend this one from a personal experience.