Awful, I will never go back.
I came here with a friend after getting shaved snow from across the street. The first thing I noticed when I walked in was the smell of urine, my friend thought it smelled like bathroom cleaner- nonetheless awful. The menu options weren't great and there was no soy sauce. My friend got the spicy miso broth which was too spicy for her, and I got the regular seaweed broth which was just hot water with the slightest tint of green color- no flavor whatsoever.
Maybe because i'm from New york and i'm spoiled by the good shabu shabu there, but this place might be Las Vegas' biggest let down, right alongside Yoshinoya.