Does everyone really expect amazing Mexican in the Luxor? C'mon people, the food is OK (average), it's more about the ambiance.
The background music is a constant flow of remixed music. For my group, it became a fun game of, "who is this?" In all honesty they take good songs and play bad versions.
Everyone in my group had tacos of one sort or another, they were kinda small and just average in taste.
We did enjoy some tequila, and they have good choices, but it is Vegas so any shot is between $10 and $20.
If you are feeling like tacos and tequila, this place will do, but I'm sure better choices are within walking distance.