While we were slightly disappointed with Ohanas, I would still recommend that you go. Everyone has different likes/dislikes, opinions, and experiences.
We (especially I) did like the view, Cousin Cliff, the salad, the bread, the noodles, and the dessert. It was a very fun atmosphere, especially if you have kids. We had a window seat with a view of the castle, and were able to watch Wishes from our table. I was very excited that we got such a great seat. Also, I love the theming and Polynesian style.
DH was especially bummed about the quality of the meat. He loves his meat, and was sooo excited when he walked in and saw all of it sitting in the cooking area on skewers. When we got it, however, it was tough and dry. We love shrimp, but they were so severely overcookedn that they were nearly impossible to peel.
I would still tell you to go and see for yourself if you like it. I think I would go back again one day. Have fun and enjoyu!