Great restaurant. Make sure you sit at the sushi bar. When it's super busy, the service can be slow in the back. In the summer, they open up the back deck; this is a wonderful way to eat. Just remember to put some bug spray on your ankles if it's early evening.
They have a number of great dishes that aren't sushi: I really like the bun cha gio (vermicelli noodle bowl) and the spring rolls are divine.
But the sushi bar is where it's at. When smelt is in season, Jae (the owner and sushi chef) will make amazing sushi with it.