I love this place, day or night, my taco dinner was excellent! I don't usually order tacos when I go to a neighborhood restaurant that has them on the menu, but my first time there I decided to order them. They were the best tacos I ever had! I had the chicken taco dinner and it was great, lots of chicken that they cook fresh on the grill, lettuce, cilantro, tomato, and onions, plus I order avocado and sour cream, which is extra, but worth it. The guys that work there are excellent short order cooks, my tacos were as good when I ordered them in the afternoon, as they were in the evening. I even ate my leftover chicken taco, at room temperature, for breakfast, and it was still good. I was surprised because that rarely happens. This is a diamond in neighborhood that is going through regentrification, it is an awesome area, not far from Cook County jail, that has lots of store's, bakeries, it is authentic, and families that live there have lived there basically their whole life. Try Guerrero's, you won't be disappointed! And the neighborhood ambience is definitely good for people watchers!