This place has been my weakness since childhood. I still get food from here once a month or so. Probably the only fast food place I visit often, other than Five Guys when I lived on the east coast. If you're preparing for a trip to Mexico, just dine here once a week for a month or two before your vacation. You'll probably be introduced to much of the bacteria of delicious real-Mexican street food.
Perhaps it's not that bad, but it is delicious. Especially their "pastrami dog". You can be a self-proclaimed "foodie" all you want, with your "oh, ha! ha!, but I admit that I do on the occasion dine at the selected In-N-Out" pompous asshole who thinks you're still down-to-earth, or you can come down and gorge on some real disgusting, real fast food. What are you afraid of? Your arteries will expand enough to still allow the blood through, don't worry. Sure, they may drop your hot dog on the ground and forget to use sanitary gloves from time to time, but how else are you going to break in your immune system, you sissy?