It's a new Hawaiian place on Santa Clara Street. I'd like to search for previous reviews here, but the site is all changed around since I last visited and I can't find a search function.
Anyway, I've been hearing good things about Grub Shack and will visit this week. I was interested in anyone's reviews of particular dishes. I have a menu here; a couple of interesting dishes are:
Thai basil chicken wings
Kalua pork rice plate & garlic shrimp topped with a fried egg
Kalua pork sliders
Cukui (?) tacos
93 E. Santa Clara Street