I've only been there once so far.
My impression upon walking in was "uh, hummm, not much in the ambiance department", but I decided to give it a try anyway. The chips and guacamole were fantastic, and I had to try hard to leave room for the entree: Chicken and cheese enchiladas with Spanish rice. It,was "yum-alicious", and the leftovers made a good lunch the next day. I'll definitely try this place again.