I have to qualify this answer by saying that we have been to Ohana twice. Once was fabulous, with the most engaging, pleasant server anyone could ask for.
And then there was...
The other time.
In a nutshell: We went to Ohana. Bartender: great. Host: great. Guy who seated us: Totally great.
The guy who waited on us, however, was downright AWFUL. After an initial round of chicken skewers, we sat there, plates empty, and watched sections of tables on either side of us (with different waiters) get serving after serving of shrimp, beef, pork, etc. Our section (three tables, same waiter) remained utterly devoid of service, lonely and starving. I was so bummed.
We called the manager the next day and explained our concerns, and he was nice enough to give us a refund. Made me feel much better about the idea of going back.