Solid 4 stars for this authentic izakaya which caters mostly to Japanese clientele. Staff is courteous but may have some ESL issues.
Other than a few (perhaps too few) daily specials, Koyoi's menu hasn't changed at all from last year. This is why I deducted 1 star.
All my Japanese friends highly recommend this place for comfort food. They all prefer Koyoi to Guu for its authentic setting and ambiance. Motsunabe (hot pot with leeks, cabbage, burdock, deep fried tofu and pig offals) is back and will be offered till Feb. $15 per person (2 ppl min). ??/add udon or rice for $2.99. Perfect for chilly autumn evenings! Limit 10 orders per night.
Our all time fave is the Koyoi salad. Must order! In fact, we've tried all of their staff picks and liked them. These are highlighted in their new menus (yes, new menus but with the same old menu items though!)
Easily accessible by subway (just north of Wellesley station).