Hmm. Tricky. This Airbnb... It is what it is. It's super cheap for SF, Ernest is great with comms. But...
You're getting a 3.5m x 2.5m (tiny) room with a (tinier) 2x1 bathroom. Off a garage. With no windows. You can hear the people next door talking in their sleep or moving in bed. Clearly.

It's not a 'room in a house' it's a custom made room (one of five) off a dusty garage, with no windows. Kinda like a cell. It's definitely cheap. We left after one night.