Hayes Valley Inn is a comfortable place to stay over in an attractive neighborhood. I arrived there at about 11:30 pm on a Saturday in March and found the room rather cold. There was no thermostat or sign of heating, so I piled the blankets from both beds on one and felt comfortable. There was loud music coming from below, but it stopped promptly at midnight.
The shared bathroom was not a problem. I saw other guests but we never tried to use the toilet at the same time.
The neighborhood around the Inn is a pleasant place to stroll. Ritual Coffee on the Octavia bike path nearby is a fine breakfast destination.