This set is very soft and well made seeming. I don't fill my duvet covers with an actual duvet, so we simply use this as a blanket because we get hot in the middle of the night easily and this helps. 
Due to using this item as I do and it not having a filling, you are able to see through one side of the cover to the other- see my attached image. 
As I am not actually using this cover as intended, let me clarify that this is not a negative issue on behalf of the seller... this was all me, I just wanted others to know this if they use their duvet covers simply as a blanket as I do :)