There is a comprehensive board of daily specials in the evening (you will need to read Japanese) as well as a daily lunch set, which is whatever they decide each day. The quality of the food is good, however the servings are skimpy and the service is extremely s l o w if they get more than a couple of groups in.
Despite this, for a local izakaya experience with high quality cooking, it's worth a look.
Excellent sashimi (but it was tiny!)
Prawn balls and daikon in broth were very fresh and delicious
Shiitake with cheese - very moreish
Fried tofu was beautifully cooked
Wagyu steak was delicious (especially with the wasabi to counter the fattiness)
Scallop with vegetable