This place is fine--I can't say I have very strong feelings about it either way.
The cave ambiance is definitely unique but it's a bit strange. There were also a LOT of kids in the restaurant, so it's a good place to go with a family. Margaritas were weak and watered down. Food was okay, but not nearly as good as other New Mexican spots like Blue Adobe or Dick's Hideaway. I had the Green Chile burrito and it was good but not amazing.
Watered down New Mexican food, if that's your thing.