We went when the kids were 8,6,4 and I remember it being horribly expensive, a bit stressful but yes fun with the Ariel photos etc and we loved discovery bay with the Dolphins.
I have an additional child now that never been aged 6, he loved Lego land and they all really enjoyed Disney Paris at Halloween last year.
I'm trying to talk myself into booking but god it's a lot of money isn't it? I'm looking at £6000 for a fortnight I think being conservative and not eating in Disney ever