Definitely the best Mexican food in the area! Maize is very good as well, but I personally find Huaraches Moroleon to have more flavorful dishes and variety. I recommend the Big Burra if you like pineapple, it's a lot of food but it's honestly like no other quesadilla I've ever had. Oh, and definitely try the salsas.
Although the exterior may be slightly off putting (it's small and appears slightly rundown from the outside), the food and the trip out to Urbana (if you live on campus like I do) is totally worth it if you like Mexican food!