No, it doesn't have the best Mexican food this side of the Wall. That is to be found at La Placita in Albuquerque, NM--or maybe Monroe's, also in Albuquerque. The best Mexican food on the other side of the Wall can be found at La Fonda de Santa Clara in Puebla.
The Coyote Moon Cafe in Lemitar, NM has about the best Mexican food anywhere. Mexican food is the one thing that I miss after moving to Florida. Never had anything authentic since leaving the Southwest.