I've been here a few times and I've had a good experience each time. There's Mexican food all over Austin, but I like going here when for quality with a distinct flavor. It's near a major intersection in South Austin in a very convenient location with plenty of parking. It's a "strip mall" near Target and a dollar store, but don't let that dissuade you. Simple decor and a relative lack of ambiance keeps the focus on the food and your company. My servers have always been attentive and helpful, too. They do have happy hour and a full bar. I would give it 5 stars, but they are gluten-free items are not marked on the menu, which is important to me! But they were able to answer my question so I was able to order appropriate things for my dietary restriction.
In short, great food, good service, convenient location and adequate surroundings.