Tacos in the morning, tacos in the evening, tacos at supper time, when tacos are on a tortilla you can have tacos any time!
Great tacos (especially the pastor and carne asada), good tamales, and wonderful gorditas. Also the horchata is among the best I've ever had.
I've been here on a few occasions and would say it ranks in the top three taco places in Madison. Definitely worth checking out.