We ate at Ohana's with a good sized group back in July. Everyone loved it, even the kids. I liked it the most, being a big meat eater. They have lots of different types of meat, so as long as you are not a vegitarian, there is something for everyone.
I would recommend dining there because the setting is unreal (castle view w/ poly surroundings) and the food great (lots of it too). You'd have to travel a long way to find anything similar. They have fun activities for the kids and it's fun to watch them cook. I took lots of food pictures, but I haven't bothered to figure out how to post them here yet.
Don't go there looking for good service though. You really have about four servers, which means none of them really "own" you, which means none of them really care. The guys bringing the meat by were great, but after wating forever after dessert, I had to get a server from another table to bring us the bill.
I'll eat there again - good food & great memories.