I'm definitely a huge fan! My co-worker found this place when she went a while back based on a recommendation by a family member. I'm SO glad she told us about this.
The place does take reservations, but when called they said they had more then enough seats for us. We got there on a Wednesday around 5:30pm. So you can order just from the regular menu, but I don't know why anyone would. For $24.99 (dinner) you get all you can eat items. The items highlighted in red (their uni, mochi, scallops for example) are only one per person. However, if someone in your group doesn't particularly like those items you can enjoy theirs.
We got so much stuff. I highly recommend getting the scallop appetizer, the garlic tuna, the seaweed salad, their garlic edamame. Honestly, everything we had was super fresh and tasty. The servers came around often and food came out fast.
I cannot wait to go back there!