We arrived at 11:35am, 5 minutes after the restaurant theoretically opened. But, in fact, they had opened about 20 minutes earlier and the place was already packed. They have a clipboard near the entrance where you can add your name to the waiting list. We were third, but because the first wave of customers had all been seated at about the same time, it took a while for them to start to finish. I occupied myself watching the guy actually making the ramen, which was fun. Once the first wave started to finish, a bunch of seats opened up in quick succession.
My wife and I both ordered the tonkatsu ramen with nitamago (a seasoned hard-boiled egg) and extra chashu pork. It was fantastic, among the best I've ever had, and certainly much better than could reasonably be expected from a strip mall in Las Vegas.
I will certainly make it a priority to come back here every time I'm in town!