If there is anything that has a learning curve, it would be the "Function Editor", now that can be as simple or as complex as you like and to use it properly does take some time and effort to learn IMO.

I don't know of anyone who loves the Vue function editor, but I know a few who hate it. That includes me :)
But it's a sort love-hate relationship, because it's a very strong tool, if you have the patience and stubbornness to get (some) grip on it.