We began our vacation last August at 'Ohana, and want to make that a tradition for every visit. My mouth is watering even now as I think of the great dinner we had! We were tucked into a little back corner and it took a while for the server to get to us initially, but afterward everyone was very attentive. Another server overheard us discussing DD's birthday the next day and brought her a cupcake - and a group of them regaled her with a song.
Our next big dinner was at the Whispering Canyon, and it was one of the poorest dining experiences of my life. The hostess at the front desk was snotty and treated us like second-class citizens when I checked in for the PS. Our server appeared to be ignorant of all the hijinks and when we tried some of the triggers (chewing gum, asking to go to the restroom, asking about Warner Bros. characters, etc) she acted like WE had a problem. As a last resort we asked for ketchup, to which she simply said "OK" and went into the kitchen. Another server - who was doing a fantastic job at the table next to us - started the ketchup prank. When our own server returned about 10 minutes later with a bottle of it, she remarked, "Well, I see you managed to find your own ketchup" and took it back to the kitchen. The food was dry and tasteless as well.
My kids want to try WC again in the hope that we just had the misfortune of being there on an off-night, but I'd rather not take the chance. OTOH, I'd happily eat at 'Ohana several times in any given vacation.