Ugh, when I lived in San Francisco, I concluded that the burritos were pretty awful when compared to burritos from the south, particularly San Diego - as far as 'American' style burritos go. Granted, this isn't the typical SF burrito, but my heart sinks each time I hear anyone rave about any burrito from the mission of the rest of SF.
Before anyone gets combative, yes, I also must admit that the basis for comparison isn't equal, because they're of different styles.