I usually go right at opening, so I don't have to wait. When I go with just myself and one other person, the wait is about 45 minutes or so. If you're willing to share a table, the wait is shortened.
The food here is delicious. Very fresh and authentic Japanese food. As soon as you walk in, you are greeted by loud cheers from the entire staff. You really do feel like you are transported into a bar in Tokyo.
My favourite dishes are: salmon tataki, teriyaki gyu tongue, and the kinoko bibimbap.