We had dinner there in July and found it to be a pretty decent buffet. We'd also eaten there a couple of years ago.
The atmosphere is loud and silly, and the characters do make the rounds regularly. I think we were in and out in about an hour and got to see all the characters during that time (Minnie, Mickey, Chip, Dale, Goofy, Donald--who stays in the lobby area). It was fun.
Food was decent. There is fresh fruit, salmon, some type of carved meat (I don't eat that--sorry I can't comment on it), rice, pasta, veggies, and the typical kids' choices. I did think the cold salads were inferior to some other WDW buffets like CP, but overall, I'd recommend it.
The one downside I saw here, worse than at other places, would be the guests. So many of them were pushy and rude, and cutting in on your character time. I'm not sure if it's because of the silliness of the place itself, or because the CMs don't police it as well as at some other places,or what. But I'd still go there again.