And except for a handful they are all very, very bad. Whenever I travel from London back to the bay area my dining consists of maxican and sushi (London sushi has two modes: terribly sad or incredibly expensive.) As a simple example, the only way to get a corn tortilla that is not a deep fried hard taco shell is to either make your own (by ordering masa from Amazon) or arrange for delivery by a service, you cannot find them in the grocery store. In general, it feels more like Mexican viewed by a Brit who spent two weeks in San Francisco once a few years ago...