I've been here a number of times for lunch, and once for "dinner". The lunch menu is reasonably priced, but the Izakaya style snacks and drinks at night could easily cost a small fortune.
The food is great; authentically Japanese and very tasty. Unfortunately, a few of my lunch visits have been met with horrendously slow service. Most of my coworkers have it on their blacklist for this reason alone. On one occasion, our lunch took nearly two whole hours; maybe 20 minutes of which was spent actually eating. We asked them for the bill six times. Awful!