Went here on New Year's Eve. It was busy but the wait was not too long or unexpected.
Service initially took a little bit as they were super busy but the waiters were all moving at a blurring speed. Once they took our order, the food arrived quickly and was good quality and taste. Ordering more for the all-you-can-eat sushi was easy, fast, and arrived quickly.
Waitstaff was extremely friendly and especially composed for such a busy day. Would go here again next time we're in LV.