I've been to this place twice and would give it a solid 3.5. I do like some of their dishes on their menu especially their Ramen and buns but other such as sushi I am bias as I have other locations I prefer, but this entirely up to every ones tastes buds.
I really like their buns either pork or chicken and usually start with them as appetizers, followed by Ramen noodles. My favorites are the Red Coconut Curry noddle - I really like their sauce mix or their spicy ramen
Their staff is friendly and knowledgeable and I like their minimalistic decor. Bathrooms are clean.
I suggest making a reservation as sometimes the waiting time can be a bit long.
I really like their location at the capitol, a great place to start your tour of Madison.