Best place for Mexican food in Madison HANDS DOWN.
Great assortment of options - from specials like Camarones a la Diabla (Spiiiiiicy!) to your quintessential Mexican fare like tacos, enchiladas, tostadas - all done with an 'authentic', spicy, flavorful flare!
Ambiance is very mom+pop-ish - understated, very cramped, mixture of families, singles, and a few good friends. AKA not the kind of place you go on a nice date. Still, somehow this modesty adds to the fun for me (and I think it does for the other patrons as well).
Love it.