Mondo taco is awesome. Though I get the feeling that in a city (and part of the country, for that matter) that prides itself on authentic tacos and Mexican food in general, this spot might get a bad rap. It's different, Mondo Taco's goal is to create unique flavors from around the world, and I'd say they succeed greatly at it.
I ordered the Holy Mole, the Southern Decadence, and Bayou Fish. Firstly, gigantic props to Mondo Taco for making their own tortillas. That makes such a big difference in the quality of the tacos, and when you've got a lot of sauces and unique toppings going on like they do, it matters. The tortilla was nice and thick, and held everything together perfectly.
Of the three I ordered, I think the Bayou Fish was my favorite. The fish had a perfect sear on it, and the portion was right for the price. All of the sauces they used on the tacos were great, and everything was balanced well. What else can I say? Everything was delicious and presented with thought in mind.
I even liked the interior decor, they managed to make a small space comfortable. You should give them your money. Leave your expectations at the door, and give 'em a try. I think Mondo Taco is an awesome novelty, even though the flavors of the my local taco truck might be a stronger draw for my routine taco fix.