We went there for breakfast a Monday morning. It was near noon, but they serve breakfast all day. The place was pretty crowded and seems to be popular with older folks. It's very kitschy, but it has that old mom-and-pop diner atmosphere, and that type of menu as well. We tried their stuffed French toast and their pancakes combos. The food was good, tasty enough, but not particularly outstanding or inspired. Basically, this is your typical all-American breakfast joint.
Full review at http://www.marga.org/foodblog/2011/08/omelet-house-las-vegas-review/