Yes! This place actually accommodates large groups of people very well. They have some really huge tables. Chinese people also love to eat in large groups and share the dishes.
If you're a fan of noodles, then you will absolutely love Xi'an, they have some of the best noodles in the world.
The knife-shaved noodles are called 牛肉刀削面
Is your wife Chinese?
I don't want to give too many details for privacy reasons, so I'll just say she's more familiar with Asian foods than most Americans. :) Great for me!