This is a small husband and wife sushi restaurant (Mr and Mrs Longisland).
I first tried out this place 3 years ago before I'd had sushi anywhere else and remembered it as being delicious and I went back 2 days ago for lunch and it is just as good as I thought even though I've had some pretty decent stuff now. I wanted to go back for dinner!
It's not too expensive at all for the quality. They have a good selection of different sushi and sashimi including daily specials and they sometimes even have the more rare melt-in-your-mouth "toro" aka fatty tuna.
I really can't recommend this place enough if you want good sushi at affordable prices. (The Chirashi Zushi is superb).