We go to this restaurant often, and I have tried several things on their menu. My favorites are the steak and shrimp fajitas and the red chile con carne. I know a few reviewers mentioned that they don't feel like they get enough meat, but I always have had plenty. True it is often below the onions and peppers, but unless I share I easily make 3 meals with 2-3 tacos each with every fajita meal I order. No matter what I order, I always have leftovers. Mostly, because between 2 of us we always finish the amazing chips and salsa (be sure to ask for the hot) prior to our meals arriving.
Every time I have been to Valle Luna we have had excellent service. This is a great Mexican food restaurant, and this is coming from someone who rarely goes to a Mexican Restaurant twice. Since, I usually feel like I could've cooked the meal better myself.