I was worried that I might not like the rug when it arrived so had a lovely helpful chat with Wayfair Customer Services who reassured me that if that was the case,  then as long as I exchange it for one of equal value or above I wouldn't have to pay for its return.  Anyway,  as it turned out I was absolutely delighted with rug, so much so that I decided to change it for a larger size. To do the exchange I contacted Customer Services again and the woman I spoke to couldn't have been nicer.  
The rug looks perfect in my dining room.  One very happy customer.