We had a quick lunch here while shopping in Robinson. I agree with Gerret W. that the chips were terrible--ours were definitely stale. I thought the salsa was just OK. The food, especially the lunch specials, is very reasonably priced and definitely authentic, a rarity in the 'burgh.
I had a spinach enchilada with rice and beans--not spicy enough for me, but that's the authentic preparation and luckily they had my favorite habanero sauce on the table.
I noticed that they had snow cone syrup gallons by the maragarita machine--not a good sign. I would skip the bar here, but if you're looking for a quick, cheap, authentic Mexican meal it's a good place to get one!