Sure, the quantities may be huge, but in this case, quantity doesn't equal quality.
I had heard so much about this place that I was very excited to try this place. My first time there, I tried the chile rellenos, which were just OK. The black beans were too salty and the rice was crunchy and underdone.
One of my dining companions was totally incredulous that I didn't want to take home the leftovers ... I'd rather go to Taqueria Guyamas or Burrito Express.