I just finished a contract at Stanford a few wks ago (neurosurgery unit). Went thru AMN. Didn't have any issues, but pay was horrible. During my orientation, all but one traveler were there thru AMN. Another went thru Aureus, but Aureus also has a bad rep. Had great experience at Stanford, and would recommend the hospital. As Ned mentioned, UCSF is another option (have heard positives & negatives). Kaiser doesn't have a very good rep. Good luck!