Stay away from Marina Motel on Lombard Street
I have never been in a room that had so much noise, 6 lanes of traffic going 24 hours a day. There is 23 seconds of quiet when there is a red light stopping traffic. Four nights of this I was ready to jump off the bridge. 
Once you book for 4 days your hooped. Lesson learned. Please book something away from Lombard street as the noise is terrible. We paid a $169.00 a night because it was a suite with a fold out couch which you can feel every spring, when folded out there is a foot to the kitchen sink. I'm not kidding.