Momofuku is mo'fu'ing good.
We came for dinner but should have come at lunch - we wanted ramen, and the choices are pretty limited in the evening.
That being said, there's a few off-menu ramens offered at dinner time, so just ask your server. Our table sampled a good portion of the menu, and everything was solid and unique.
Ambiance is a dark and vibey but still feels casual enough to hit up before a night at the club. Momofuku takes reservations, so be sure to request a seat overlooking the strip.