I really liked the story.
I think it has a great meaning behind it, to not be selfish and to help people out if you have enough power to do so.
JK Rowling is a genius for being able to write such meaningful children stories. I wouldn't be surprised if the whole of Beedle and the Barb stories were turned into animations - although they would suit wizard children more obviously

But there are a lot of good morals that muggle children need to know too