Very, very poor property
This hotel is located in a rather seedy part of San Francisco, which is saying a lot: San Francisco's seedy parts are among the scarier parts of cities I've stayed in. For that reason alone, I'd not recommend this property unless you are ready to deal with a bad part of town. And I've been to some pretty bad places. 
Given that the motel can't change its location, I'm going to comment mostly on my experience with the room. The room itself was small, and amenities were minimal. Sheets were clean. There was a big gouge in the wall where someone had evidently moved the TV and scraped the plaster. The locks on the door worked, which was a relief. The sheets were clean and the bed was made daily. The door keys rarely worked, and when I went up to the front desk to ask for new ones, the attendant gave them to me, no questions asked and no ID required. That did not inspire confidence given the location. Service was surly, except for the first guy who checked me in whose attitude was OK. One afternoon, I returned to my room and found my room cleaned. OK. However, I noticed that the cup I was using to hold my toothbrush was half full of water. I did not fill it. There were at least two nights when I heard someone yelling outside my neighbor's door - someone not affiliated with or wanted by my neighbor. That made it hard to sleep. 
You do get what you pay for - the price was about $100/night less than the conference rate at the conference I was at. So I shouldn't really complain. But even at the price, I cannot recommend this property because of the safety and service issues. Do not stay here if you can help it.