Very popular at the moment, we went there last wknd, and wait for almost 1.5hours to get in. There were others came with reservation but had to wait as well.
But once you get in, everything went smoothly, food was fresh, service was good.
The only downside is the price, it is a bit pricy. But they do have discount for birthday month and also on the actual birthday. Overall you should give a try, especially if you love sashimi and fresh seafood.