After my smog check appointment got cancelled twice in the same day (see my review of Precision Tune Auto Care in Redwood City), I drove around looking for a gas station who could do my smog check today. I found Menlo Atherton Shell and they were great! The guy behind the counter was friendly and honest. He told me they were wrapping up 1 car and would do mine next, within the next 10 mins. And their prices were reasonable; I believe 49 for the smog and 8 for the certificate. I sat down on their shaded bench and my car was finished in about 40 mins. 2 Thumbs up!