Awesome! The best $20 you can spend in Vegas (for dinner for 2).
We found this place on Yelp and dropped by around 7 o'clock on a Thursday. It was packed and we grabbed the last available table.
We surveyed the offerings on the cold buffet (3 for $4.50) and chose the pig ears, the beef tongue and chicken feet. A very generous portion and all were delicious.
For our mains, we had the "Boiled Beef and Fish in Szechuan Sauce," which is actually the classic Szechuan hot pot and an order of Dan Dan Mien (spicy noodles with ground meat). We ordered both with maximum heat and they were both pretty spicy and absolutely delicious.
Everyone in the restaurant was speaking Mandarin and all of the staff and 99% of the customers were obviously Chinese from the PRC. This is no Taiwanese or Hong Kongese upscale dining experience. It's an authentic PRC chow hall. It was extremely loud and lively and pretty much exactly like being in this class of restaurant in China.
Szechuan is my favorite province in China and although the food wasn't quite up to what you'd get in Szechuan it was a pretty damn good facsimile. We didn't bring our own beer but half the other tables did and I'd advise you to do the same.