Here's what one of the residents I know had to say... He's originally from California (Irvine for med school, I believe).
"The program is small, no call on wknds (but 5 during the weekdays). Pt population is varied, it is a county program. I'm not sure, but I think they do a fair amount of trauma (the ER program is one of the best in the country.) They got a new director several years ago so I don't know what he has done with the program but I heard he trying to revamp it. Overall it's okay but not one of the best. However, if you want to live in CA vs getting the absolute best, consider it."