Already been there and done that with my wife and four daughters. The best(not) memory of the De Smet site is the head lice that one of my daughters got from the borrowed sunbonnet at the school.
Don't like LIW? How about this idea for a brilliant combo bonus:http://tinyurl.com/ps44gj Pick up a receipt for a burrito from each El Famous location; you must eat what you purchase.
Personally, I thought their chorizo was under-spiced.