I've been fortunate enough to visit this food truck on South Congress twice, and I have to say that I've really enjoyed the sandwiches. I've only had the BLT (fried Green Tomatoes, bacon and poblano aioli) and the Cubano (hickory smoked pork and pickled jalapeno) but both have been lovely, flavourful, fatty sandwiches. Chef Eric makes chips/crisps from the potato while you wait. He's friendlier than the gruff postings on the cart would suggest.
I wish I were staying longer so I could eat each sandwich he offers. Or another BLT.
I envy Austinites their amazing selection of food -- had a few other memorable meals, too. Y'all are so lucky.