In all honesty, as a solo female traveler who has stayed in a number of private room air bnbs, I have never felt less safe in an air bnb. The front door was never locked, despite keys having a key for this door, on a number of occasions the door was even wide open, allowing anyone to walk in from the street if they desired.
Secondly, the bathroom was filthy, there is what i suspected to be mold all across the bathroom ceiling, the lighting provided in the bathroom is inadequate to even close the shower curtain, which wouldn't be an issue should the blinds to the bathroom close and not allow anyone to see in from the outside. The bathroom was also cluttered with other peoples belongings, including a dead skin scrapper for feet. Whilst it was a cheap place to stay I believe the no cleaning fee should be an indication of what one should expect when staying here.