My family (4 of us) spent a week at the Poly last month. We had 1 dinner at Ohana, and it was the worst meal of the week. The shrimp were overcooked, and sitting in way too much liquid. The potatoes were greasy and bland. There was some sort of lousy vegetable. The steak was tough and not very tasty, the turkey was overcooked, and the pork was fatty. The sausage was just ok, but had no taste. Plus, they brought out things in the wrong order (potatoes before salad, then salad, then meat). Restaurant wasn't crowded, so no excuse there. However, the salad was good.
We had 1 breakfast at Ohana, which was just ok. By the way, we found the rest of the food at Disney to be very good. I had 3 dinners at Kona, 2 breakfasts at Kona, plus mutliple meals at Captain Cooks. We also had 2 dinners at GF, 1 lunch at GF, plus lunches at MK and Epcot.
Ohana was our first meal, and glad we got the bad one out of the way. I don't think I would go back for dinner-but I might go back for breakfast.