Hey I think some are too worried about traffic in the city. Once your in it you'll be fine. Everyone here is pretty skilled...You wouldn't be here otherwise.
Think of it as jumping into cold water. Scary for about 10 seconds. My older brother hadn't ridden a bike in 27 years. He went straight down Caifornia with me and we rode all day in the city! He had a blast and he's not crazy like me. Actually a normal guy!
Pete