Don Ruben's is an extremely good Mexican restaurant with friendly and very fast service. Even late on a Wednesday evening the place is jammed wall to wall. But this popularity hasn't made them complacent as the food is terrific - particularly the shrimp enchilada and the chile relleno. The beef fajitas were delicious but there could have been more actual beef.
Overall the portions are good and prices fairly average. Not bad for very good food.