Many people seem to just love Ohanas. I've eaten there twice for dinner and will not be back.
The meat was horribly overdone both times, and the service was bad once. The games for the children are interesting, but of course distract the children from eating.
The good news is that you are on the monorail and can easily get to the California Grill, which offers some of the best food and views Disney has to offer. The Grand Floridian also has good restaurants.
I love the Poly, but personally find the restaurant situation there very weak.