I want to say 3.6 stars vs. 3 or 4 and here's why.
Udon made in house--awesome. Broth that comes with it--kind of underdeveloped. Quality of fish--quite good compared to other places. Meals prepared with some care and portions are generous. Some of the appetizers were good.
However, they were presented a little unceremoniously on the table, as in, the person who was not our original server just came up and a little abruptly dropped it off at the table while I was talking with my date. Atmosphere is quite casual.
If they master the broth and the atmosphere, they could easily upgrade to another star in my book.