I do not have any particular opinions on this, and this is only my impressions with no scientific or medical grounds.
As for me, CW is a language or a foreign language. It is definitely so in a sense that I only partially understand them, feel disappointment and sadness when one does not understand the phrase, and still always wish and try to improve.
For your information, French is a foreign language for me, and alas so is CW.
So how do you understand the conversation in French? If it is not a solid copy, is it frustrating or still fun listening to the talk?