I usually go to Kagawa for take-out Sushi, so I can't comment on the dining experience. When I do go in for take-out though, the staff is very accomodating, serving tea while you wait for your order.
I find that you get A LOT for what you pay, which is great because it takes a lot of sushi to fill me up and I never wind up hungry after I order from here.
Their sushi is also delicious and fresh. I have no complaints! I love the dynamite roll and tempura roll the best, I'd say. I'm not into spicy stuff but my bf has the spicy salmon and quite enjoys it (and claims it's not *that* spicy). Yum!