Rumbi is probably the most-frequented place in our workday lunch rotation. I describe it to people as a poor-gal's Tommy Bahama. The decor is island-ish (squint your eyes really hard and pretend you're on vacation) and the staff is friendly enough to make-believe that you're a guest at a tropical resort. Okay, maybe that last part is a bit of an overpromise, but a girl can dream...
The hulu salad is really tasty and almost a little too large(I highly recommend asking them to do a spinach/romaine combo), but lately I have been jonesing for the luau pork plate with rumbi rice (pulled pork, coconut rice with red beans, some mac salad and a bit of coleslaw--so yummy, I crave it). The food is pretty reasonably-priced for what you get, and it's the "fast casual" style where you walk up and order and then they bring it out to you.
When you get sick of wraps or sandwiches in the Promenade-area, give Rumbi a try to mix it up. I think it would be hard to be disappointed. Aloha!