Corona Express Smog

Went multiple times at 8am only to find the place closed. When I called before 5pm to verify the shops times the guy told me they were already done for the day. I told him I waited from 8am until almost 9am a few days only to hear "some days we don't open until 9ish." He didn't give me any assurance that anyone would be there on time the next day when I asked if I could be there at the listed opening time. This place may be fast and convenient, but only if they are there. Call first or waist time.