I made ADR's w/o a problem at Le Cellier, Coral Reef, Sci-Fi, Chef Mickeys, Le Cellier again, Biergarten, Kouzzina, Sanaa, Chefs De France 2 weeks ago for our trip early this summer. I was shocked, and delighted to not have had a problem getting them.
We aren't doing Ohana this trip, but I know why people are having problems getting them:the word is out! Ohana has all-you-care-to-eat of WONDERFUL foods and it has an AWESOME VIEW of the lagoon and MK, and its SUPER-DUPER fun for the kiddos. It's not just "going to eat", it's an attraction, in itself!