We have only been to 'Ohana for dinner. In the past few years, we have loved it. The food was great, fresh, not overcooked and generally, we had an okay to great service. I have always booked 2 ADRs for 'Ohana per trip.
The past couple of vacations (March and Aug 2009), we were not too thrilled with the food. The service was a bit off as well. We requested more noodles (since we love them

) and our "cousin" didn't bring it until just before dessert. I guess it does depend also on the server. We've had great ones which made our dinner/experience much better. All he did was refill drinks and checked with us to see if we wanted more of anything else. That's all I expected and that's what most do. But there were a few, where even if you remind them about something you requested, you don't get it until you no longer want it.
Also, although, this is really a personal taste. But I really miss the previous singer. He was great. He made us feel like we were immersed in Hawaii. Now, they have a female singer, which, although she seems fine, doesn't have that
Hawaii-ness.
Anyways, we are going again in March and I will be making another ADR for 'Ohana, but I think it'll be just one this time. I'm hoping that I will be pleasantly surprised and the food will not be overcooked and the service will be good.