I worked in Oakland and my advice is if you can avoid it, do so.
I'll second Tom's point.
Bunny and I lived in Santa Rosa for several years and I worked in "The City." It was not an entirely bad experience. The worst restaurants in San Francisco are better than the best of other places.
Still, the City of Oakland is a cesspool. If someone would nuke the place, many of Kalifornistan's economic woes would be resolved since it would eliminate a huge welfare drain. Drugs, gangs and crime abound. Even if you are well armed, it just isn't a safe place to be.
The rest of Kalifornistan is just sad. The Dummycraps have taken a remarkable state (with mountains, beaches, deserts, and great year-around climate) and turned it into an expensive nanny state where the 45% who work must support the 55% who won't, and where regulations make it increasingly difficult for businesses to remain profitable.
I still visit from time to time--my daughter and grand kids live there--but I suffer anxiety when I do. The way things are set up there makes the victim into the criminal, and exonerates the actual criminal. Heaven forbid you should use one of those evil guns to protect yourself, your family, or your property. You'd never see daylight.
When I go, I drive out and I keep a cache of weapons locked up in precise conformance to Kalifornistan law. I wouldn't expect to get to them to protect myself or Bunny in an emergency, but if TEOTWAWKI occurs, I'll have some form of defense at hand.
Good luck.
Crusader